HUZLÍK J.1, BUCKOVÁ M.1, JANDOVÁ V.1, ŠPIČKA L.1, POUL A.11 <a target="_blank" rel="noopener noreferrer" href="https://gcms.cz/companies/215">Centrum dopravního výzkumu, v. v. i.</a>, Brnoe-mail: <a href="mailto:jiri.huzlik@cdv.cz">jiri.huzlik@cdv.cz</a>Publikováno také v časopise <a target="_blank" rel="noopener noreferrer" href="https://gcms.cz/companies/39">Chemagazín</a><h4>Úvod</h4>Silniční doprava patří mezi významné zdroje znečištění ovzduší v městském prostředí, přičemž přispívá k pěti třídám hlavních látek znečišťujících ovzduší, a to NOx, částicím (PM), O3, <a target="_blank" rel="noopener noreferrer" href="https://gcms.cz/library?search=VOC">VOC</a> (těkavé organické látky) a CO [1]. Benzen, toluen, ethylbenzen a xylen (<a target="_blank" rel="noopener noreferrer" href="https://gcms.cz/library?search=BTEX">BTEX</a>) patří do skupiny VOC a jsou klasifikovány jako nebezpečné sloučeniny, jejichž toxické účinky na lidské zdraví jsou dobře zdokumentovány. Tyto sloučeniny hrají důležitou roli v chemii atmosféry, protože reagují s oxidem dusičitým za vzniku sekundárních látek znečišťujících ovzduší, jako je ozón. Dalšími zdroji BTEX jsou kromě dopravy také spalování palivového dřeva a uhlí. BTEX se uvolňují také z mnoha spotřebních produktů, jako jsou cigarety, rozpouštědla, barvy a ředidla, stavební materiály, bytové zařízení a pesticidy [2]. Mezi nejvíce nebezpečnou organickou sloučeninu patří benzen, jehož dlouhodobá expozice může vést ke genotoxicitě, hematotoxicitě, rakovině plic, leukémii, poškození jater, ledvin a centrálního nervového systému [3].K odběru plynných vzorků (např. ovzduší, výfukových plynů, emisí) pro následnou analýzu VOC se používají pružné sáčky (vaky) nebo pevné kanystry. Vaky jsou vyráběny z různých materiálů a dle toho se liší svými vlastnostmi, použitím a také obchodními názvy (Tedlar, Altef, FlexFilm, FlexFoil, FluoroFilm FEP). Nejčastěji bývají používány Tedlarové vaky, jejichž materiál je odolný proti pronikání plynů do vaku i ven z vaku a má tloušťku 2 mil (1 mil = 0,001 inch). Vaky z Tedlaru jsou uvedeny v několika EPA metodách a mají zajišťovat výbornou skladovací stabilitu pro širokou škálu těkavých organických látek.Pro experiment sledující stabilitu BTEX ve vzorcích výfukových plynů při uchování v odběrových nádobách byl vybrán Tedlar vak, který je běžně používaný v automobilovém průmyslu při měření emisí. Jako alternativa byl zvolen FlexFoil Plus vak, který je speciálně čištěný, s dobrou skladovací stabilitou pro VOC v rozsahu koncentrací od vyšších úrovní v ppb až po nízké úrovně v ppm, s minimální adsorpcí a absorpcí. Tento vak je ze silného, flexibilního, čtyřvrstvého materiálu o tloušťce 5 mil. Stabilita BTEX byla sledována v 6 časových intervalech po dobu 7-8 dnů. K odběru výfukových plynů bylo využito mobilní měřící zařízení sestrojené ve spolupráci Centra dopravního výzkumu, v. v. i. a firmy SEKO Brno, spol. s r. o., zapojené za automobil, umožňující vzorkování škodlivin v reálném provozu. Cílem práce bylo srovnat stabilitu BTEX v obou vacích a vybrat vhodný odběrový vak pro vzorkování výfukových plynů a také časový interval, během kterého bude muset být analýza BTEX z vaku provedena, což povede k zajištění reprodukovatelných a srovnatelných výsledků.<h4>Přístroje a metody</h4>Měření emisí bylo prováděno s využitím mobilního měřicího zařízení (obr. 1), užitný vzor CZ21385 U1. Mobilní zařízení umožňuje jednak kontinuální měření koncentrací limitovaných polutantů u automobilů a zároveň unikátní řízený odběr vzorků výfukových plynů do vaků a pevných částic na filtr. Při testování v reálném provozu je připojeno za automobil pomocí běžného tažného zařízení. Kompletní proud výfukových plynů je odváděn do měřicího úseku. V zadní části měřicího úseku je izokineticky odebírán reprezentativní vzorek výfukových plynů, který je vysušen a veden do odběrných vaků, umístěných v mobilním zařízení.Vzorky výfukových plynů, nasbírané v rámci experimentu do vaků, byly ihned po ukončení jízdy dopraveny do laboratoře. Odběr vzorků z vaků byl prováděn na termodesorpční trubičky MARC1-AAXX-5020 Cpk X z nerez oceli, náplň Carbopack X (Markes International, Velká Británie) a výsledné hodnoty koncentrací BTEX byly přepočteny na standardní podmínky (tlak 760 torr, teplota 273,15 K). Vzorky výfukových plynů z vaků byly odebírány čerpadlem AirCheck 2000 s průtokem 200 ml·min-1 po dobu 5 minut. První dílčí vzorky byly odebrány ihned po předání vzorků do laboratoře. Následoval odběr po 1, 2, 24 a 48, 168 a 190 hodinách. Při každém odběru byly použity 3 termodesorpční trubičky, které byly plněny bezprostředně po sobě. Koncentrace benzenu, toluenu, ethylbenzenu, o-xylenu a součtu koncentrací m-xylenu a p-xylenu (BTEX) byly stanoveny plynovou chromatografií s hmotnostní detekcí metodou SIM po termální desorpci na termodesorbéru <a target="_blank" rel="noopener noreferrer" href="https://gcms.cz/library?mainauthorItems=10&amp;manufacturerItems=1&amp;search=7667A+Mini+Thermal+Desorber">Agilent 7667A Mini Thermal Desorber</a> (G4370M) podle programu: sušení 1 min, desorpce: startovní teplota 40 °C, nárůst 500°C·min-1 na 325 °C po dobu 1 minuty. Teplota transferline byla 160 °C, teplota ventilu byla 160 °C, průtok nosného plynu helia termodesorbérem byl 50 ml·min-1.Koncentrace jednotlivých škodlivin ve výfukových plynech byly měřeny plynovým chromatografem s hmotnostním detektorem <a target="_blank" rel="noopener noreferrer" href="https://gcms.cz/products/217">Agilent 7890</a>/<a target="_blank" rel="noopener noreferrer" href="https://gcms.cz/products/1232">7010</a> osazeným dvěma kolonami Select PAH, 15 m x 150 µm x 0.1 µm, který pracoval s následujícím teplotním programem:29 °C po dobu 0,5 min; 5 °C·min-1 na 100 °C po dobu 0 min;120 °C·min-1 na 240 °C po dobu 1,133 min.Teplota nástřiku byla 200 °C metodou split 10:1. Jako nosný plyn bylo použito helium He 6.0 (SIAD, Itálie) s konstantním průtokem 0,2 ml·min-1.Vyhodnocení výsledků bylo provedeno s pomocí software QC.Expert 3.3 metodou lineární regrese. Součástí regresní analýzy bylo testování statistické významnosti regresních parametrů, tj. směrnice a absolutního členu regresní přímky, testování významnosti regresního modelu a statistické charakteristiky regrese (koeficient determinace R2). Posouzení stability koncentrací BTEX ve vacích bylo provedeno otestováním lineární a exponenciální závislosti jejich koncentrací na času odběru vzorků. Pro posouzení exponenciální závislosti koncentrací BTEX byla testována lineární regrese mezi přirozenými logaritmy jejich koncentrací a časem odběru vzorků výfukových plynů na termodesorpční trubičky.Obr.1: Mobilní měřicí zařízení<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/CDV_Stabilita_BTEX_z_vyfukovych_plynu_pri_skladovani_ve_dvou_typech_odberovych_vaku_Obr_1_Mobilni_merici_zarizeni_64d480f0d9.jpg" alt="CDV: Obr.1: Mobilní měřicí zařízení." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_CDV_Stabilita_BTEX_z_vyfukovych_plynu_pri_skladovani_ve_dvou_typech_odberovych_vaku_Obr_1_Mobilni_merici_zarizeni_64d480f0d9.jpg 245w," sizes="100vw" width="1205" height="539"><h4>Výsledky a diskuse</h4>Byly sledovány časové závislosti koncentrací benzenu, toluenu, ethylbenzenu, o-xylenu a součtu koncentrací m-xylenu a p-xylenu (BTEX) po jejich odběru do vaků z materiálu Tedlar a FlexFoil Plus. V časových intervalech, které uvádí tab. 1 a tab. 2, byl vždy odebrán jeden litr vzorku na termodesorpční trubičku. Výsledky pro vak Tedlar uvádí tab. 1, výsledky pro vak FlexFoil Plus tab. 2.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/CDV_Stabilita_BTEX_z_vyfukovych_plynu_pri_skladovani_ve_dvou_typech_odberovych_vaku_Tab_1_Vysledky_mereni_koncentraci_BTEX_ve_vaku_Tedlar_4e025a4594.jpg" alt="CDV: Tab. 1: Výsledky měření koncentrací BTEX ve vaku Tedlar." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_CDV_Stabilita_BTEX_z_vyfukovych_plynu_pri_skladovani_ve_dvou_typech_odberovych_vaku_Tab_1_Vysledky_mereni_koncentraci_BTEX_ve_vaku_Tedlar_4e025a4594.jpg 214w," sizes="100vw" width="1379" height="1004"><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/CDV_Stabilita_BTEX_z_vyfukovych_plynu_pri_skladovani_ve_dvou_typech_odberovych_vaku_Tab_2_Vysledky_mereni_koncentraci_BTEX_ve_vaku_Flex_Foil_Plus_1dafdd7f41.jpg" alt="CDV: Tab. 2: Výsledky měření koncentrací BTEX ve vaku FlexFoil Plus." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_CDV_Stabilita_BTEX_z_vyfukovych_plynu_pri_skladovani_ve_dvou_typech_odberovych_vaku_Tab_2_Vysledky_mereni_koncentraci_BTEX_ve_vaku_Flex_Foil_Plus_1dafdd7f41.jpg 208w," sizes="100vw" width="1384" height="1040">Stabilita koncentrací jednotlivých BTEX byla ověřena regresní analýzou. Lineární regresí byly testovány koncentrace BTEX a logaritmy jejich koncentrací.Lepších výsledků při statistickém hodnocení časové závislosti koncentrací BTEX v Tedlarovém vaku bylo dosaženo při testech logaritmů koncentrací (vyšší koeficienty determinace R2), což odpovídá jejich exponenciálnímu poklesu (tab. 3).<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/CDV_Stabilita_BTEX_z_vyfukovych_plynu_pri_skladovani_ve_dvou_typech_odberovych_vaku_Tab_3_Vysledky_porovnani_linearniho_a_exponencialniho_modelu_Tedlar_a895109e42.jpg" alt="CDV: Tab. 3: Výsledky porovnání lineárního a exponenciálního modelu – Tedlar." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_CDV_Stabilita_BTEX_z_vyfukovych_plynu_pri_skladovani_ve_dvou_typech_odberovych_vaku_Tab_3_Vysledky_porovnani_linearniho_a_exponencialniho_modelu_Tedlar_a895109e42.jpg 245w," sizes="100vw" width="1622" height="774">Výsledný model má tedy tvar pro všechny BTEX ve vaku z materiálu Tedlar:c=c0×e(-k×t)Kde:<ul><li>c &nbsp; &nbsp;koncentrace polutantu [µg.m-3]</li><li>c0&nbsp;&nbsp;počáteční koncentrace polutantu [µg.m-3] v čase t=0 [h]</li><li>t&nbsp;&nbsp;&nbsp;&nbsp;doba vzorkování uplynulá od počátku vzorkování [h]</li><li>k&nbsp;&nbsp;&nbsp;&nbsp;časová konstanta [h-1]</li></ul>Výsledné parametry regrese udává tab. 4.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/CDV_Stabilita_BTEX_z_vyfukovych_plynu_pri_skladovani_ve_dvou_typech_odberovych_vaku_Tab_4_Vysledne_parametry_regrese_koncentraci_BTEX_a_casu_9749826f61.jpg" alt="CDV: Tab. 4: Výsledné parametry regrese koncentrací BTEX a času." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_CDV_Stabilita_BTEX_z_vyfukovych_plynu_pri_skladovani_ve_dvou_typech_odberovych_vaku_Tab_4_Vysledne_parametry_regrese_koncentraci_BTEX_a_casu_9749826f61.jpg 245w," sizes="100vw" width="1474" height="236">Koncentrace BTEX měřené ve vaku z materiálu FlexFoil Plus dávaly při lineární regresi statisticky nevýznamné regresní směrnice s koeficienty determinace R2 menšími než 0,2 jak pro koncentrace, tak jejich logaritmy, což lze interpretovat jako nulový pokles koncentrací BTEX ve vaku FlexFoil Plus během doby měření. Stejných výsledků bylo dosaženo při testování lineární regrese pomocí Fisher-Snedecorova testu významnosti modelu, který udával jeho nevýznamnost pro všechny BTEX ve FlexFoil Plus vaku (tab. 5).<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/CDV_Stabilita_BTEX_z_vyfukovych_plynu_pri_skladovani_ve_dvou_typech_odberovych_vaku_Tab_5_Vysledky_porovnani_linearniho_a_exponencialniho_modelu_Flex_Foil_Plus_956dddfd05.jpg" alt="CDV: Tab. 5: Výsledky porovnání lineárního a exponenciálního modelu – FlexFoil Plus." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_CDV_Stabilita_BTEX_z_vyfukovych_plynu_pri_skladovani_ve_dvou_typech_odberovych_vaku_Tab_5_Vysledky_porovnani_linearniho_a_exponencialniho_modelu_Flex_Foil_Plus_956dddfd05.jpg 245w," sizes="100vw" width="1654" height="769">Koncentrace BTEX ve vaku z materiálu FlexFoil Plus je tedy možné považovat během měření za konstantní (střední hodnoty koncentrací viz tab. 2). To znamená, že koncentrace BTEX ve vaku z materiálu FlexFoil Plus byly minimálně po dobu 7 dní stabilní. To potvrzuje i sledování výtěžností jednotlivých BTEX měřených po 48 hodinách od odběru (tab. 6).<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/CDV_Stabilita_BTEX_z_vyfukovych_plynu_pri_skladovani_ve_dvou_typech_odberovych_vaku_Tab_6_Stanoveni_vyteznosti_BTEX_po_48_hodinach_od_odberu_vzorku_3dffc9b39e.jpg" alt="CDV: Tab. 6: Stanovení výtěžností BTEX po 48 hodinách od odběru vzorků." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_CDV_Stabilita_BTEX_z_vyfukovych_plynu_pri_skladovani_ve_dvou_typech_odberovych_vaku_Tab_6_Stanoveni_vyteznosti_BTEX_po_48_hodinach_od_odberu_vzorku_3dffc9b39e.jpg 245w," sizes="100vw" width="1540" height="229">Ve vaku z materiálu Tedlar docházelo během sledování stability BTEX k poklesu jejich koncentrací pravděpodobně vlivem jejich sorpce na stěnách vaku, jejich rozkladu nebo kombinace obou procesů. Ztráta VOC může být mimo fyzikální adsorpci VOC na stěnách vaků způsobena také rozpouštěním VOC ve vodě kondenzované ve vacích, chemickou reakcí, hydrolýzou a biologickou degradací [4]. Časová stabilita koncentrací ve vaku Tedlar pro jednotlivé BTEX klesá v pořadí benzen – toluen – ethylbenzen – meta- + para-xylen, o-xylen, tedy se zvyšující se molekulovou hmotností aromatických sloučenin, jak uvádí tab. 6 pro výtěžnosti po 48 hodinách. Kim et al. uvádí, že relativní výtěžnosti pro benzen a toluen, které mají relativně nízké molekulové hmotnosti, byly trvale vysoké (86–99 % po třech dnech skladování ve vacích), naproti tomu výtěžnosti sloučenin s vysokou molekulovou hmotností (p-xylen a styren) byly nízké s hodnotami 51–81 % po třech dnech skladování [5]. Při srovnání stability polyesterových hliníkových vaků (PEA) a polyvinylfluoridových vaků (PVF, značka Tedlar®) pro odběr vzorků těkavých organických látek je v literatuře uváděna lepší výtěžnost testovaných VOC u PEA vaků než u PVF vaků [5, 6]. Z našich výsledků vyplývá lepší stabilita BTEX ve vaku FlexFoil Plus ve srovnání s Tedlar vakem.Stabilita VOC ve vacích je ovlivněna i dalšími faktory, jako je teplota skladování, koncentrace testovaných látek, relativní vlhkost a také objem naplnění vaku vzorkem. Pro větší výtěžnost VOC se doporučuje naplnit odběrový vak až na 80 % svého jmenovitého objemu [7], je také doporučováno skladovat vak při nižší teplotě, protože sloučeniny skladované při nižší teplotě jsou stabilnější [4].<h4>Závěr</h4>Byly porovnány dva typy vaků – Tedlar a FlexFoil Plus, které byly použity při odběru výfukových plynů mobilním měřícím zařízením za reálného provozu. U vaků byla porovnána stabilita BTEX sloučenin v několika časových intervalech (0, 1, 2, 24, 48, 168 a 190 hod). Výsledky ukázaly dobrou stabilitu FlexFoil Plus vaku po dobu 7 dnů ve srovnání s vakem z materiálu Tedlar, ve kterém docházelo ke snižování koncentrací BTEX s časem, přičemž pro jednotlivé sloučeniny klesala časová stabilita jejich koncentrací v pořadí benzen – toluen – ethylbenzen – meta- + para-xylen, o-xylen. Pro odběr vzorků výfukových plynů pro následné analýzy BTEX je vhodnější FlexFoil Plus vak s optimální dobou analýzy vzorku menší než 7 dní po odběru na trubičky.<h4>Poděkování</h4>Tento článek byl vytvořen za finanční podpory Ministerstva dopravy v rámci programu dlouhodobého koncepčního rozvoje výzkumných organizací.

Stabilita BTEX z výfukových plynů při skladování ve dvou typech odběrových vaků

<div class="___1mdw7yc f22iagw f1vx9l62 f2qmhz0">Zajímáte se o vliv chemických látek na životní prostředí a hledáte odborné informace z první ruky? S velkým potěšením Vás zveme na náš nově připravovaný webinář zaměřený na testování ekotoxicity. Webinářem Vás provede supervizorka ekotoxikologické sekce ALS Czech Republic a odbornice na danou problematiku, Kateřina Vavřinová.Náš nový webinář zaměřený na testy ekotoxicity, Vám poskytne hlubší vhled do této problematiky. Na začátku se seznámíme se základními pojmy a principy ekotoxicity, následně se podíváme na metodologii testování, a nedílnou součástí webináře bude samozřejmě také přehled legislativního rámce, kde probereme aktuální předpisy a vyhlášky ovlivňující testování ekotoxicity.Pomocí praktických ukázek Vám představíme konkrétní příklady a postupy testování, které vám pomohou aplikovat získané znalosti v praxi.Na závěr webináře budete mít možnost položit Kateřině otázky formou chatu.Těšíme se na Vaši účast a diskusi na toto velmi aktuální téma.<h5>Pro koho je webinář určen?</h5>Tento webinář je vhodný pro širokou škálu účastníků, kteří mají o problematiku ekotoxicity a kvality životního prostředí zájem. Rádi přivítáme naše klienty, ekology, odborníky a vědce v&nbsp;oblasti odpadového hospodářství, pracovníci státní správy, laboranty nebo studenty.Zaujal Vás tento připravovaný webinář? Zúčastněte se a můžete si tak rozšířit své znalosti o testování ekotoxicity.Rádi byste se zúčastnili, ale nevyhovuje Vám termín online přenosu? Nevadí! Zaregistrujte se i v&nbsp;tomto případě, záznam webinář bude pro všechny registrované účastníky dále k&nbsp;dispozici ze záznamu.Těšíme se na Vás.Váš tým ALS.</div><blockquote>Přednášející: Kateřina Vavřinová (Ecotoxicology Section SupervisorALS Czech Republic s.r.o.)</blockquote><div class="___1ssnlw3 f22iagw f1vx9l62 f1nicjmu fly5x3f f1l02sjl"><div class="___k6j0wd0 f22iagw f1nicjmu f1vx9l62"><blockquote><div class="___kwg7oq0 f197wrh9 fpfc2by f1rvi9lw f1p9o1ba f1sil6mw f1cmbuwj fokg9q4">Kateřina Vavřinová pracuje jako supervizorka ekotoxikologické sekce v laboratořích ALS v České Lípě.</div></blockquote></div></div>

Webinář ALS Czech Republic: Ekotoxicita

Rádi bychom Vás pozvali na jednodenní hybridní konferenci, která se zaměří na nejnovější trendy a inovace v analýze mikroplastů. Dopolední program bude online přenášen a nahráván, což umožní virtuální účast pro ty, kteří se nemohou zúčastnit osobně.<h3>Program</h3>Dopolední část: Bude zaměřena na klíčové poznatky o <a target="_blank" rel="noopener noreferrer" href="https://gcms.cz/library?mainauthorItems=10&amp;search=microplastics">analýze mikroplastů</a>, stejně jako o <a target="_blank" rel="noopener noreferrer" href="https://lcms.cz/library?mainauthorItems=10&amp;search=PFAS">PFAS</a> a dalších kontaminantech životního prostředí, prostřednictvím prezentací špičkových výzkumníků a odborníků z oboru.Odpolední část: Bude zaměřena na interaktivní workshopy, jejichž cílem je zlepšit vaše praktické dovednosti v přípravě vzorků. To poskytuje jedinečnou příležitost zvládnout pokročilé techniky a metodiky pod vedením profesionálů. Navštivte živé demo na IR QCL založeném na <a target="_blank" rel="noopener noreferrer" href="https://icpms.cz/products/719">8700 LDIR</a>. Kromě toho si užijte prohlídku laboratoře s průvodcem, která nabízí exkluzivní pohled do nejmodernějších zařízení v kampusu HEREON.<h5>9:15 a.m. - Welcome</h5><h5>9:20 a.m. - From Macroplastics to Mesoplastics: Challenges and Solutions</h5><ul><li>Dr. Marion Börger, Agilent Technologies,</li><li>Dr. Andreas Kerstan, Agilent Technologies</li></ul><h5>9:40 a.m. - i3 Membrane Session: Filter Membranes/Packaging - Jacobs</h5><ul><li>Kathrin Hahn, i3 Membrane</li></ul><h5>10:00 a.m. - Exploring Microplastic Sources and Distribution in Australian Soils</h5><ul><li>Subharthe Samandra, University of Melbourne</li></ul><h5>10:20 a.m. - Advancing Analysis: Eurofins' Path to ISO 17025 Accreditation for Microplastics Testing</h5><ul><li>Julia Jäger, Eurofins</li></ul><h5>10:40 a.m. - Coffee Break</h5><h5>11:00 a.m. - Validation and Application of LDIR Imaging to Analyze Microplastics in Marine Samples</h5><ul><li>Lars Hildebrandt, Hereon</li></ul><h5>11:20 a.m. - Applying Multiple Analytical Techniques to Answer Open Questions About Offshore Wind</h5><ul><li>Alexa Zonderman, Hereon</li></ul><h5>11:40 a.m. - Sample-Based Subsampling Strategies to Analyze Large Quantities of Particles in LDIR</h5><ul><li>Manuel Andrade, University La Coruna</li></ul><h5>12:00 p.m. - Beyond the Surface: Spotlight on Plastic [Metal(loid)] Additive Leaching and Unseen Contaminants</h5><ul><li>Ole Klein, Hereon</li></ul><h5>12:20 p.m. - Microplastics back in food- Advantages of Thermal Desorption for a wide range of Samples</h5><h5>12:40 p.m. - Struggling with Solvent Effects During the Analysis of PFAS</h5><ul><li>Dr. Axel Ritter, Agilent Technologies</li></ul><h5>1:00 p.m. - Lunch Break</h5><h5>2:00 p.m. - An Analytical Toolbox to Unravel PFAS Source Fingerprints</h5><ul><li>Frank Menger, Hereon</li></ul><h5>2:20 p.m. - LDIR for Assessment of Microplastics in the VAMAS Ring Trial and Tissue in a Murine Infection Model</h5><ul><li>Christoph Krafft, IPHT</li></ul><h5>2:40 p.m. - Label-Free Infrared Spectroscopic Micro- and Nanoplastics Detection in Complex Matrices</h5><ul><li>Markus Brandstetter, Recendt</li></ul><h5>3:00 p.m. - Break in Dividing the Guests into Subgroups</h5><h5>3:10 p.m. - Lab Visits: Organic Lab, Microplastics Lab, Sample Prep, LDIR, and Other Techniques</h5><h5>4:50 p.m. - Wrap up</h5><h3>Detaily konference</h3><ul><li>Datum a čas: 29. října 2024 od 9:00 do 16:30&nbsp;</li><li>Místo konání: &nbsp;GITZ GmbH, Max-Planck-Straße 2, 21502 Geesthacht, Germany</li><li>Během konference bude zajištěno občerstvení a oběd.</li></ul><a target="_blank" rel="noopener noreferrer" href="https://explore.agilent.com/microplameeting24">Přihlaste se zde</a>Kapacita sálu pro prezenční účast je omezena! Můžete využít i online připojení do streamu konference, ale streamovaná bude jen dopolední část konference. Odpolední program, tedy workshopy, budou probíhat jen prezenčně na místě.Neváhejte a přihlaste se!&nbsp;<blockquote><h3><a target="_blank" rel="noopener noreferrer" href="https://icpms.cz/products/719">Agilent 8700 LDIR chemický zobrazovací systém</a></h3>Agilent 8700 Laser Direct Infrared (LDIR) chemický zobrazovací systém poskytuje nový sofistikovaný přístup k chemickému imagingu a infračervené spektrální analýze. 8700 LDIR byl vyvinut pro použití jak experty, tak laiky a nabízí jednoduchý vysoce automatizovaný postup pro dosažení spolehlivých vysoce rozlišených chemických zobrazení jednotlivých povrchových složek.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/HPST_Obr_1_Agilent_8700_LDIR_system_pro_chemicky_imaging_19f4f9f649/HPST-Obr.-1-Agilent-8700-LDIR-system-pro-chemicky-imaging.jpg" alt="Altium: Agilent 8700 LDIR systém pro chemický imaging" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_HPST_Obr_1_Agilent_8700_LDIR_system_pro_chemicky_imaging_19f4f9f649/thumbnail_HPST-Obr.-1-Agilent-8700-LDIR-system-pro-chemicky-imaging.jpg 245w," sizes="100vw" width="1554" height="684"></blockquote>

Agilent Microplastics Meeting 2024 (žive + online)

Webináře

Životní prostředí

Zdraví

Vědecký článek

Toxikologie

Health

Článek

Video

Nejbližší akce

Základním posláním společnosti ALS je pomáhat našim klientům se kvalifikovaně a informovaně rozhodovat tím, že poskytuje spolehlivá, konzistentní a reprodukovatelná laboratorní data. Zaručujeme spolehlivé výsledky, krátké dodací lhůty, nepřetržitý provoz, odbornou podporu a odběry vzorků.

ALS Czech Republic

Centrum dopravního výzkumu, v. v. i. (CDV), je veřejnou výzkumnou institucí a jedinou výzkumnou organizací v působnosti Ministerstva dopravy. Laboratoř centra dopravního výzkumu Laboratoř životního prostředí, Laboratoř dopravní infrastruktury, Laboratoř dopravního značení.

Centrum dopravního výzkumu (CDV)

Je autorizovaným distributorem společnosti Agilent Technologies pro Českou republiku v oblastech chromatografie (GC, HPLC, UHPLC, kapilární elektroforéza) a hmotnostní spektrometrie (GC/MS, LC/MS, CE/MS), disolučních aparátů, molekulární (UV-Vis, UV-Vis-NIR, fluorescence, FTIR analyzátory a mikroskopy) a atomové spektroskopie (ICP-OES, ICP-MS, AAS), a v neposlední řadě také v oblasti molekulární biologie a genomiky (analýza nukleových kyselin a proteinů, microarray skenery a skla, PCR & RT-PCR, qPCR, řešení pro NGS, reagencie pro mutagenezi a klonování, sondy FISH a další).

Altium International

Separation Science

The Analytical Scientist

Agilent Technologies

LECO

Thermo Fisher Scientific

SelectScience

Regulatory pressure and consumer awareness have increased the focus on reducing chemical emissions from materials, which has subsequently become a critical area of research and innovation for the polymer industry. With growing attention on environmental sustainability and public health, manufacturers are compelled to address the emissions of volatile organic compounds (VOCs) and other chemicals released during the production and lifecycle of polymer-based products. These emissions have far-reaching impacts, affecting not only the environment but also consumer health, due to the potential presence of harmful chemicals in everyday products and the detrimental effect of off-odors on customer comfort.
This webinar examines the latest trends and technologies in sampling and analysis of material emissions in the polymer industry. Learn how advanced analytical techniques, such as thermal desorption-gas chromatography-mass spectrometry (TD–GC–MS) and other state-of-the-art methods like GC×GC, are revolutionizing the way emissions are characterized. By understanding and mitigating these emissions, industries can enhance product safety, meet stringent regulatory standards, and contribute to a cleaner, healthier environment.
By attending this webinar, you will:
<ul>
<li>Discover the challenges involved in the analysis of VOCs from polymers</li>
<li>Learn how TD–GC–MS can improve the detection of trace compounds, including odorants</li>
<li>Explore real-world examples of emissions considerations applied to polymers</li>
</ul>
Who should attend:
<ul>
<li>Polymer scientists who want to understand more about odors and emissions from recycled plastics</li>
<li>Sustainability experts who want to enhance their ability to analyze complex VOC profiles</li>
<li>Industrial and analytical researchers focused on R&amp;D in the polymer sector</li>
</ul>
What you need to know:
Date: 17 September, 2024
Start times:
<ul>
<li>Broadcast #1: 17 September - 10 am BST (London) / 11 am CEST (Paris/Berlin) / 2:30 pm IST (New Delhi) / 5 pm SGT (Singapore)</li>
<li>Broadcast #2: 17 September - 10 am PDT (Los Angeles) / 12 pm CDT (Chicago) / 1 pm EDT (New York)</li>
</ul>
Duration: Approximately 60 minutes
<blockquote>
Presenter: Caroline Widdowson (Material Emissions Specialist, Markes International)
</blockquote>
<blockquote>
Caroline works for Markes International, an advanced analytical instrument manufacturer. Having completed her chemistry degree at Cardiff University, she followed on with a Ph.D. in Organic Chemistry then an MBA. As part of her current role, Caroline advises manufacturers, test laboratories, and research institutes on equipment needed to monitor interior environments and study chemical emissions from materials. Caroline is the Chair of the UK BSi committee developing standard methods for the sampling and analysis of chemicals from products and materials (BSi EH2/5); she also participates in ISO, ASTM, and CEN standards and national regulatory committees relating to this area.
</blockquote>

Separation Science: Advanced GC–MS Techniques in Polymer Chemistry

Advanced GC–MS Techniques in Polymer Chemistry

Discover the latest trends and technologies in sampling and analysis of material emissions in the polymer industry.

PFAS in air is different! From the targets of interest to the sampling and measurement techniques, everything is new and emerging.
Join us for an in-depth exploration of airborne PFAS and its implications in various environments. In this exclusive live webinar, we’ll cover key topics including US EPA methods OTM45 and OTM-50, vapor intrusion, landfill gas monitoring, and the future of personal and occupational exposure monitoring.
Our PFAS experts will discuss the methods available for measuring airborne PFAS, highlighting current technologies and best practices. You&#39;ll gain insights into how these methods are applied in real-world scenarios, and what steps you can take to ensure accurate and reliable results.
Why attend?
<ul>
<li>Discover the latest advancements in airborne PFAS detection, including US EPA methods OTM-45 and OTM-50.
</li>
<li>Understand how PFAS experts apply these measurement methods in practical scenarios like vapor intrusion and landfill gas monitoring, ensuring accurate results.
</li>
<li>Learn how these emerging techniques are transforming environmental monitoring and how to mitigate risks.
</li>
<li>Get your pressing questions answered by our leading PFAS experts with strategies to manage and reduce airborne PFAS exposure in your industry.
</li>
</ul>
<blockquote>
Presenter: Nathan Eklund
</blockquote>
<blockquote>
Nathan is a seasoned expert with 28 years of experience in environmental consulting and emerging contaminant science. As the PFAS Practice Leader at SGS EHS North America, he focuses on advancing the emerging contaminants and specialty analytical services sector, particularly PFAS. Nathan brings a customer-centric approach to solving complex problems, leveraging his extensive background in business development, sales management, process improvement, strategic planning, client management, data analysis, and risk analysis.
</blockquote>
<blockquote>
Presenter: Julia Roth
</blockquote>
<blockquote>
Julia works closely with clients to develop optimized project solutions for vapor intrusion, industrial hygiene, fenceline monitoring, emissions, and specialty air projects. With extensive remediation consulting experience, she handles a wide range of typical and emerging contaminants across various media, including indoor air, soil vapor, sewer vapor, groundwater, soil, wastewater, leachate, landfill gas, and emissions. Her recent work has focused on PFAS volatility, resulting in several published papers and presentations. Julia holds a degree in Biological Systems Engineering from Virginia Tech, underscoring her strong technical foundation and commitment to advancing air quality and remediation practices.
</blockquote>

SGS: Clearing the Air: Understanding Airborne PFAS Exposure

Clearing the Air: Understanding Airborne PFAS Exposure

US EPA methods OTM45 and OTM-50, vapor intrusion, landfill gas monitoring, and the future of personal and occupational exposure monitoring.

Join us on October 15th for a Live from the Lab for professionals from environmental and food testing labs.This hybrid event will be live streamed from our Customer Solution Center in Paris and explores the latest solutions and workflows to overcome challenges in environmental and food contaminant testing.You will have the opportunity to hear from Thermo Fisher Scientific and leading industry experts who will discuss and demonstrate new and advancing workflows to meet and exceed European regulations. We will delve into hot topics such as PFAS, pesticides, persistent organic compounds, and automation, providing you with valuable insights and strategies to tackle these issues effectively.Register now to secure your slot at one of the in-person events across Europe, or to join remotely from your desk.This is a unique opportunity to connect with industry professionals, so join us to explore, network, and collaborate on your future projects.<h3>Preliminary agenda</h3>10:15 Live streaming of this event to ‘satellite’ locations and online audience10:30 Introduction, Jeff Stubbs, Business Development Manager, Environment and Food Safety, Thermo Fisher Scientific10:55 Detecting PFAS in drinking water to meet regulations across Europe - New automated sample preparation high-resolution MS solution to achieve ppt detection limits, A Ganci, V Thibert and B Gauriat, Senior Product Application Specialists, Thermo Fisher Scientific11:35 Break12:05 New ready-to-go pesticide residue solution for faster, more confident results, Z Julian, Product Marketing, B Gauriat, and J Moriceau Senior Product Application Specialists Thermo Fisher Scientific12:45 Low-level contaminant testing in environmental water matrices – high-resolution GCMS approach to meet future regulations, John Quick, Principal Scientist, ALS Environmental Ltd13:15 Closing comments13:30 End of live streaming

Thermo Scientific: Solutions for environmental and food contaminant testing

Solutions for environmental and food contaminant testing

New and advancing workflows to meet and exceed European regulations.

<ul>
<li>Discuss what GC-MS/MS is and what applicaitons it is used for (Dioxins, POPs, etc.)
</li>
<li>Transition into an overview of APGC as a solution
</li>
<li>Discuss challenges or limitations of the current GC/MS/MS technology
</li>
<li>Share why using nitrogen as a carrier gas for GC/MS/MS analysis is optimal
</li>
</ul>
Webinar Learning Objectives:
<ul>
<li>Understanding GC-MS/MS and Its Applications:- Discuss the principles of gas chromatography-mass spectrometry (GC-MS/MS) and its role in analytical chemistry.- Explore specific applications of GC-MS/MS, including its use in detecting dioxins, persistent organic pollutants (POPs), and other environmental contaminants.
</li>
<li>Introduction to APGC (Atmospheric Pressure Gas Chromatography):-. Provide an overview of Atmospheric Pressure Gas Chromatography (APGC) as an alternative solution to traditional GC-MS/MS.- Highlight the advantages and unique features of APGC, such as improved sensitivity, reduced matrix effects, and enhanced selectivity.
</li>
<li>Challenges and Innovations in GC-MS/MS Technology:- Identify the current challenges and limitations faced by GC-MS/MS technology.- Discuss recent innovations and advancements aimed at overcoming these challenges.- Emphasize the importance of using nitrogen as a carrier gas for GC-MS/MS analysis, considering its inertness, availability, and compatibility with various detectors.
</li>
</ul>
<blockquote>
Prtesenter: Frank Dorman (Senior Principal Market Development Mgr, Waters Corporation)
</blockquote>
<blockquote>
Frank Dorman is currently Senior Principal Market Development Manager for Waters focusing on their global environmental business and, concurrently, a Resident Scholar in the Chemistry Department at Dartmouth College in Hanover, NH where he is active in teaching analytical chemistry to undergraduates and graduate students.
</blockquote>
<blockquote>
In his role at Waters, Frank manages the research-focused environmental market, external collaborations, and interfaces with R&amp;D for new product development. Prior to this, Frank was an Associate Professor in the Department of Biochemistry and Molecular Biology (BMB) sat Penn State University in University Park, PA. At Penn State, Frank served as a member of the Graduate Faculty in: Biochemistry, Microbiology and Molecular Biology (BMMB), Chemistry (CHEM), Biogeochemistry (BGC) and the Forensic Science Program (FRNSC) and the Center for Molecular Toxicology and Carcinogenesis. Franks scientific interests are in gas and liquid chromatography and fundamental characterization, instrumentation and column development, as well as mass spectrometry and atomic spectroscopy as applied to trace analysis in complex sample matrices.
</blockquote>
<blockquote>
Presenter: Sarah Dowd (Principal Mass Spectrometry Applications Specialist, Waters Corporation)
</blockquote>
<blockquote>
Sarah Dowd joined Waters as a mass spectrometry application specialist in 2015 after earning her PhD in analytical chemistry from the University of Illinois at Urbana Champaign.
</blockquote>
<blockquote>
In her eight years at Waters in the Americas application lab, Sarah has collaborated with many customers looking to expand the MS capabilities of their laboratories with Water&#39;s instruments and software. Specializing in analyses in food, environmental, and polymeric materials characterization, she has done extensive work looking at environmental contaminants with tandem quadrupole and high resolution mass spectrometers.
</blockquote>
<blockquote>
One of the hot topics for the past couple of years is the analysis of per- and polyfluoroalkyl substances (PFAS) and Sarah has collaborated with customers and other scientists within Waters to guide the next phase of PFAS testing with Waters mass spectrometry systems.
</blockquote>

Waters Corporation: APGC Roundtable: Unveiling the Pathways of GC-MS/MS Evolution

APGC Roundtable: Unveiling the Pathways of GC-MS/MS Evolution

Discuss what GC-MS/MS is and what applicaitons it is used for (Dioxins, POPs, etc.)

APGC Roundtable: Unveiling the Pathways of GC-MS/MS Evo

Join Agilent and GERSTEL for a 3-day live virtual seminar discussing how you can assure safety, authenticity, and quality of alcoholic beverages. The focus will be on sharing the latest in technology developments and capabilities, new applications, and customer stories.<h4>Presentation 1: Use of FTIR Technology for the Analysis of Sugars and Sweeteners in the Production of Alcoholic Beverages</h4><ul><li>Rogelio García Juárez, Pre-Sales Application Engineer – Agilent Technologies</li></ul>Currently, fast, and accurate methods are required for the analysis of raw materials and various sources to produce alcoholic beverages, for the rapid identification and quantification of these materials, let's review FTIR technology for process controls, as the ideal alternative to other techniques such as HPLC.<h5>Key Learning Objectives/What attendees will learn:</h5>1. The use of Fourier Transform Infrared (FTIR) Technology in applications for the alcoholic beverage industry.2. Analysis for the identification and release of raw materials used in preparation of Spirits.3. Quick methods to determine the concentration of sugars and sweeteners for process control.<h5>Who Should Attend:</h5><ul><li>Producers of alcoholic beverages, distillates, prepared liqueurs, juices, and extracts.</li></ul><h4>Presentation 2: GC-MS Techniques for the Determination of 2-Methylisoborneol and Geosmin in Finished Whiskey</h4><ul><li>Nicole Kfoury, Applications Scientist, GERSTEL,Inc.</li></ul>2-Methylisoborneol (MIB) and geosmin are naturally occurring metabolites formed by bacteria and fungi, most often in surface water sources. They have musty/earthy odors and very low odor thresholds, meaning they can be smelled at concentrations of 1-10 ppt in water. As a result, products, such as whiskey, that use contaminated water in the process may have musty, earthy odors in the finished product. Due to the complexity of the whiskey matrix and the low odor threshold of MIB and geosmin, they can be challenging to quantify accurately. This work shows that a selectable, heartcutting 1D/2D-GC-MSD is required to accurately quantify MIB and geosmin in finished whiskey. &nbsp;<h5>Key Learning Objectives/What attendees will learn:</h5>1. Overview of solid phase microextraction (SPME) versus stir bar sorptive extraction (SBSE).2. Overview of multidimensional, heartcutting GC-MS.3. How to accurately measure the concentration of 2-methylisoborneol and geosmin in complex samples such as whiskey.<h5>Who Should Attend:</h5><ul><li>Analytical chemists in the food, flavor, fragrance, and beverage industries.</li></ul><blockquote>Presnter: Rogelio García Juárez (Pre-Sales Application Engineer, Agilent Technologies)Rogelio García is an Applications Engineer for Molecular Spectroscopy in UV-Vis, FTIR, and Raman techniques at Agilent México and Latin America. Rogelio has a Bachelor’s Degree in Pharmaceutical Chemistry and a Master´s Degree in Environmental Engineering. He has worked in several developments of methods and applications in water, soil, and air, as well as in method design for the Pharmaceutical and Food industry. In this last one, he has developed an outstanding application method for alcoholic beverages such as Tequila using FTIR technology.Presnter:&nbsp;Nicole Kfoury, Ph.D. (Applications Scientist, GERSTEL, Inc.)Dr. Nicole Kfoury is an Applications Scientist at GERSTEL, Inc. in Baltimore, MD. She joined GERSTEL after receiving her Ph.D. in Analytical Chemistry at Tufts University and working as a Research Scientist at the Tufts University Sensory and Science Center. She is responsible for developing methods for sample preparation and gas chromatography-mass spectrometry and creating a Sensory Directed Analysis program at GERSTEL. She teaches customer training, supports pre- and post-sales opportunities, and provides analytical support to customers in a wide array of industries including food, flavor, fragrance, forensic, environmental, and chemical industries.</blockquote>

Agilent Technologies: Alcoholic Beverages Virtual Symposium: Spirits

Alcoholic Beverages Virtual Symposium: Spirits

How you can assure safety, authenticity, and quality of alcoholic beverages.

Join Agilent and GERSTEL for a 3-day live virtual seminar discussing how you can assure safety, authenticity, and quality of alcoholic beverages. The focus will be on sharing the latest in technology developments and capabilities, new applications, and customer stories.<h4>Presentation 1: Comparison of Headspace GC-MS Techniques to Characterize Volatile Phenols contributing to Smoke Taint in Pinot Noir Wines</h4><ul><li>Stephen Toth, GCMS Specialist in the Structure Elucidation Department – International Flavors &amp; Fragrances (IFF)</li></ul>A series of volatile phenols originating from smoke tainted grapes exposed to regional fires have been known to exhibit undesirable sensory characteristics such as smoky, burnt, ashy and medicinal flavoring in affected wines. This can be negatively perceived by consumers and often leads to an aftertaste of these characteristics lingering in the mouth after the wine has been swallowed. Wildfires plagued the counties in northern California and Oregon during the 2020 wildfire season from August through October. These fires severely impacted the grape harvest and challenged wine makers as many of their vineyards were either destroyed or their crops were contaminated with smoke taint. Numerous wineries opted to release limited amounts of 2020 Pinot Noir for this reason or produce rosé or white wines from affected grapes. Our research will look specifically at three different vintages (2019, 2020 and 2021) of Pinot Noir from the same vineyard in the Willamette Valley region of Oregon. It should be noted that “smoke” as an indicator of taste in wines is not always an indicator of smoke taint but can also be imparted into the wine by aging in oak barrels.We will compare headspace based GCMS techniques to characterize these wines and profile the volatile phenol content. Solid phase micro extraction (SPME) and stir bar sorptive extraction (SBSE) will be used to analyze both free volatile content and gylcosidically bound phenolic content. The free volatiles will be acquired in unaltered wine to best represent the consumer’s initial experience. These samples will then experience a pH adjustment, sonication and heat treatment to release gylcosidically bound phenolic compounds which could potentially be released over time by aging the wine.Our research will characterize the phenolic compounds contributing to the smoke taint odor and flavor present in the Pinot Noirs against the sugar bound compounds that can potentially release over the shelf life of the wine utilizing SPME and SBSE extraction methods. Additionally, the comparison of vintages will indicate whether the phenolic characteristics obtained by GCMS can be used to capture the smoke defect in the wine profile from 2020.<h5>Key Learning Objectives/What attendees will learn:</h5>1. Theory and applicability of SHS, SPME, SBSE, TF-SPME, DHS, and pyrolysis.2. How to decide on the most optimal extraction technique based on research challenges.<h4>Presentation 2: An Exploration of Phenolics in Red Wines: Chemical and Sensory Effects of Selected Winemaking Techniques</h4><ul><li>Dr. L. Federico Casassa, Associate Professor, Enology, Cal Poly</li></ul>This presentation discusses how the winemaker can manage winemaking elements – those over which we have control – to develop, evolve and enhance mouthfeel, with focus on phenolic compounds in grapes and wines from the Central Coast of California. The discussion then covers which elements can be leveraged and managed during the production of the wine. There are known protocols for grapes, yeast, fermentation, and aging. However, the challenge for the winemaker is to understand how our various treatments affect the end product. This presentation covers the effects of fermentation temperatures, cold soaking and how the manipulations of these elements can be used to modulate astringency and mouthfeel in the wines.<blockquote>Presenter: Stephen Toth (GCMS specialist in the Structure Elucidation Department, International Flavors &amp; Fragrances (IFF))Stephen Toth is a GCMS specialist in the Structure Elucidation Department at International Flavors &amp; Fragrances (IFF) in Union Beach, NJ. He has spent his lengthy career at IFF working in fragrance delivery, chromatography and ultimately in the mass spectrometry group where part of his role is scouting out new technologies. He is very active in the Agricultural and Food Chemistry Division of the American Chemical Society and currently serves as the treasurer and executive board member. He has edited multiple books and has organized several analytical and flavor chemistry symposia at national meetings. He also serves as a graduate student mentor for the division. He holds a B.S. and M.S in chemistry from Seton Hall University and a Ph.D in food science from Rutgers University.Presenter:&nbsp;Dr. L. Federico Casassa (Associate Professor, Enology, Cal Poly)Dr. Casassa’s research focus lies on the broad areas of grape and wine chemistry and biochemistry and their sensory implications, with especial emphasis on applied research. He has been involved in research projects focusing on the impact of irrigation techniques, especially Regulated Deficit Irrigation. Current and ongoing research projects include studies on the extraction of phenolics of sensory relevance during the course of different maceration techniques in red wines, coupled with other regulating factors and their sensory impact as evaluated by formal sensory evaluation techniques.</blockquote>

Aglient Technologies: Alcoholic Beverages Virtual Symposium: Wine

Alcoholic Beverages Virtual Symposium: Wine

Join Agilent and GERSTEL for a 3-day live virtual seminar discussing how you can assure safety, authenticity, and quality of alcoholic beverages. The focus will be on sharing the latest in technology developments and capabilities, new applications, and customer stories.<h4>Presentation 1: GC-MS Technology for Non-Alcoholic Beer Flavor Improvement and Off-Odor Identification</h4><ul><li>Tiffany Crawford, Lead Scientist 1 – Analytical, Kalsec Inc.</li></ul>Non-alcoholic and low alcoholic beers are growing in demand worldwide. However, dealcoholization and arrested fermentation lead to changes in the overall aroma and flavor profiles compared to full strength beer analogues. This webinar will discuss a semi-targeted method developed using DHS-GC-MS technology that allows for improvement of NA beer flavor through the addition of specialized hops products. This webinar will also discuss the use of GC-MS-O technology to determine the source of off-odors in a plant extract matrix.<h5>Key Learning Objectives/What attendees will learn:</h5>1. Understand the analytical challenges in the determination of off-flavors and odors in complex matrix.2. How a combination of Gerstel and Agilent Instrumentation improves GC-MS analysis and understanding of negative sensory characteristics identified in beer.3. How analytical techniques can be used to identify and solver sensory issues in food and beverage matrices.<h5>Who Should Attend:</h5><ul><li>Chemists and lab managers from contract testing labs and the food and beverage industry</li></ul><h4>Presentation 2: Single Analysis of Beer Volatile Compounds in Two Channels FID and ECD with GC Intuvo</h4><ul><li>Celso Blatt, Pre-Sales Application Engineer, Agilent</li></ul>One single injection for determination/analysis of 12 volatile compounds in beer using an Agilent 7697A Headspace Sampler integrated with the Intuvo 9000 GC System. The use of a Splitter that divides the sample 1:1 allows simultaneous analysis in two capillary columns with different stationary phases and FID and ECD detectors. This saves time and avoids a second GC for these two important analyzes for beer quality control. The DB-WAX column with the FID was used for the main volatile compounds in beer and the HP-5MS column was used with the ECD for the ketones that can cause undesirable odors in beer and are in low concentrations.<h5>Key Learning Objectives/What attendees will learn:</h5>1. Single injection beer analysis2. Saving time and instrument3. Ease to use<blockquote>Presenter: Tiffany Crawford (Lead Scientist 1 – Analytical, Kalsec Inc.)Tiffany Crawford works for Kalsec Inc. as a Lead Scientist in the Hops business unit. In her position at Kalsec, she develops methods using GC-MS and LC-MS technology for the detection of small molecules of interest in different food matrices. She holds a Ph. D. in Chemistry from the University of North Carolina at Chapel Hill.Presenter:&nbsp;Celso Blatt (Pre-Sales Application Engineer, Agilent Technologies do Brasil)Graduação em Química Industrial pela UFSM de Santa Maria, RS. Mestrado e Doutorado em Química Analítica pela USP, SP. Pesquisador em instrumentação analítica na Instrumentos Científicos CG Ltda - SP de 1987 a 1992. Engenheiro de suporte e depois cientista de aplicações na Hewlett Packard / Agilent Technologies Brasil desde 1992 até hoje.</blockquote>

Agilent Technologies: Alcoholic Beverages Virtual Symposium: Beer

Alcoholic Beverages Virtual Symposium: Beer

Routine analysis and reporting of volatile and semivolatile organic compounds (VOCs and SVOCs) in environmental samples is well established, defined and standardized by the Environmental Protection Agency (EPA) and other organizations. However, cutting-edge GC-MS technology is redefining laboratories’ performance for environmental analysis, whether using single or triple quadrupole mass spectrometry.Yoshiro Hiramatsu, GC-MS Product Liaison and Dr. Ruth Marfil-Vega, Senior Market Manager, Shimadzu Scientific Instruments, will explore how Shimadzu’s latest GC-MS instruments, in combination with the multi-platform software LabSolutions and LabSolutions Insight, enable successful detection, quantitation, and suspect screening of VOCs and SVOCs. Plus, discover how these tools support EPA methods, from initial sample analysis to final data reporting.<h4>Key learning objectives</h4><ul><li>Learn how to boost throughput with the use of an enhanced tuning algorithm, faster data acquisition, and other novel GC-MS designs for prolonged stability and shorter analysis time</li><li>Find out how to effectively mitigate human error, minimize rework, and reduce operational costs with advanced GC-MS technology to simplify maintenance and routine analysis</li><li>Discover how to streamline data processing and reporting through AI-assisted data integration for EPA and other environmental methods</li></ul><h4>Who should attend?</h4><ul><li>Lab managers</li><li>Environmental analytical chemists</li><li>Water quality professionals</li><li>GC-MS users</li><li>Environmental analysts</li><li>Environmental laboratory managers</li></ul><blockquote>Presenter: Yoshiro Hiramatsu (GCMS Product Liaison, Shimadzu Scientific Instruments)Yoshiro Hiramatsu has been working in GC-MS engineering for over 12 years in Japan and the US. He majored in magnetic physics at Kyoto University and joined Shimadzu after graduation. He has played a pivotal role in engineering new MS technologies aimed at enhancing GC-MS technology. After relocating to the US, he shifted his focus to application development, with a particular emphasis on the environmental market. By leveraging the latest advancements in GC-MS technology, he has been driving innovations that address critical environmental challenges.Presenter:&nbsp;Dr. Ruth Marfil-Vega (Senior Market Manager , Shimadzu Scientific Instruments)Dr. Ruth Marfil-Vega has 20 years of expertise in environmental chemistry and engineering in the US and Europe. She has worked with the EPA and the utilities industry to design and execute comprehensive solutions for addressing new environmental and water quality issues. At Shimadzu, she works with environmental stakeholders to make sure that analytical instrumentation and workflows support their success. She has a a BSc in Chemistry from the University of Valladolid, Spain, and a PhD in Environmental Science and Engineering from the University of Cincinnati.Presenter:&nbsp;Carrie Haslam (Associate Editor, SelectScience)</blockquote>

SelectScience: Redefine Volatile and Semivolatile Organic Compounds Analysis by GC-MS, from Start to Finish

Redefine Volatile and Semivolatile Organic Compounds Analysis by GC-MS, from Start to Finish;

How Shimadzu’s latest GC-MS instruments enable successful detection, quantitation, and suspect screening of VOCs and SVOCs.

Redefine Volatile and Semivolatile Organic Compounds

The presence of per- and polyfluoroalkyl substances (PFAS) in food supply chains is a growing concern due to their environmental persistence and potential health risks.As awareness increases, the demand for effective regulations and advanced analytical methods for detecting PFAS in food is critical. In this webinar hosted by Agilent in association with AOAC India Section, we will explore the current PFAS contamination landscape, regulatory frameworks, and the latest analytical solutions.The session will cover PFAS characteristics and the challenges they present to food safety. We will examine global and regional regulations, with a focus on evolving standards in India and the South Asia Pacific region. Also, the webinar will highlight advanced analytical approaches for different food matrices like seafood, eggs, meat, infant formula, packaging material, including sample preparation, instrumentation, and reporting essential for effective PFAS detection. Agilent's robust LC/MS and GC/MS PFAS testing solutions will be showcased along with the Captiva EMR sample preparation kit, demonstrating how they can help food manufacturers, exporters, and regulatory bodies ensure compliance with global standards.<h4>Learning outcomes:</h4><ul><li>Comprehensive understanding of PFAS characteristics and the regulatory landscape across global and regional markets, including India and the South Asia Pacific.</li><li>Advanced analytical techniques for PFAS detection in food, covering sample preparation, instrumentation, and reporting methodologies.</li><li>Practical insights into implementing PFAS testing solutions to ensure compliance with international food safety standards.</li></ul><h4>Who should attend:</h4><ul><li>Food scientists, analytical chemists, regulatory authorities, government lab personnel, industry professionals in food manufacturing, packaging, exporting, R&amp;D scientists, toxicologists, QA/QC analysts and managers, academicians, and researchers focused on PFAS analysis and food safety.</li></ul><blockquote>Presenter: Dr. Nick Birse (Lecturer, School of Biological Sciences, Queen's University, Belfast, Northern Ireland, UK)Nick Birse is a Lecturer in Mass Spectrometry at Queen’s University Belfast, where he focuses on the use of mass spectrometry to solve key food integrity challenges, such as the measurement of chemical contaminants and natural toxins, fingerprinting foods to determine geographic origin and help detect fraud, or simply to measure key quality, flavour and taste attributes, all of which makes foods tastier, healthier and safer for consumers. Nick previously served as a Research Fellow within Prof Chris Elliott’s research group, assisting in the execution of Chris’s 2021 Agilent Thought Leader Award. He holds a PhD in Analytical Chemistry from Queen’s University Belfast.Presenter:&nbsp;Dr. Niladri Sekhar Chatterjee (Senior Scientist and DST Inspire Fellow, ICAR-Central Institute of Fisheries Technology, India)Dr. Niladri has more than 10 years of experience in precision measurement of small molecules in food, biological, and environmental matrices. His doctoral research is on pesticide metabolism, and environmental fate in crop, soil, and water. His postdoctoral research is on seafood authentication using high resolution mass spectrometry-based metabolomics and molecular spectroscopy fingerprinting. He currently works as a Senior Scientist in the Biochemistry and Nutrition Division at ICAR Central Institute of Fisheries in Kochi. At CIFT, he has been instrumental in establishing a state-of-the-art analytical chemistry laboratory from scratch which is today one of the National Reference Laboratories. He has received external grants from the Science and Engineering Research Board (SERB) India, National Agricultural Science Fund, and FSSAI. In the NRL, he has developed and validated precision measurement methods for multiclass analysis of pesticides, antibiotic residues, and endocrine disruptors and is actively managing the ISO 17025 accreditation of the laboratory. His research work has resulted in several peer reviewed publications.Presenter:&nbsp;Dr. Lorna De-Leoz (Global Food Segment Director, Agilent Technologies, USA)Lorna De Leoz has nearly 20 years of experience in the food industry. As the Global Food Segment Director, she collaborates with scientists to help develop accurate and reliable testing for food safety, quality, and authenticity. Lorna worked at the National Institute of Standards and Technology in the Mass Spectrometry Data Center for seven years. She completed her Ph.D. in Chemistry at University of California, Davis on milk oligosaccharides and glycan biomarkers analyses.</blockquote>

Agilent Technologies: PFAS in Food Supply Chains: Regulations and Analytical Approaches: in association with AOAC India Section

PFAS in Food Supply Chains: Regulations and Analytical Approaches: in association with AOAC India Section

PFAS characteristics and the challenges they present to food safety.

PFAS in Food Supply Chains: Regulations and Analytical

LECO will regularly invite key leaders of the NTS space from all industries to present and discuss their groundbreaking work. This series promises not only to delve deeper into the intricacies of non-targeted screening but also to foster collaboration and knowledge exchange among experts and enthusiasts alike. Secure your spot now and embark on a journey of discovery in chemical analysis, with each instalments of our monthly webinar series delivering fresh perspectives and invaluable insights.<blockquote>Presenter: Prof. John Langley (University of Southampton, UK)Prof. John Langley, Head of Characterisation and Analytics, Chemistry, from University of Southampton, a leading expert in sustainable fuels, will present on the latest advancements in renewable and sustainable fuel analysis. As the demand for eco-friendly alternatives like Sustainable Aviation Fuel (SAF) and Hydrotreated Vegetable Oils (HVOs) grows, so do the analytical challenges associated with their stability, complexity, and integration into traditional fuel matrices, such as diesel.In this session, Prof. Langley will explore how these next-generation fuels introduce new hurdles for quality measurement, requiring innovative hyphenated techniques, including GC-MS and comprehensive two-dimensional gas chromatography (GCxGC-MS). Attendees will gain insights into the crucial role of these methods in evaluating fuel quality, especially as renewable fuels are blended with conventional fuels.He will further discuss how GCxGC-MS is pivotal for comparing and analyzing different HVOs, providing clarity on how these tools enable the screening of differences and similarities across various renewable fuel sources. This webinar will offer invaluable perspectives for anyone involved in fuel analytics, energy sustainability, or related industries.</blockquote>

LECO: Non-Targeted Screening in Sustainable Fuels: Exploring Method Development and Fuel Quality Assessment Using GCxGC-MS and Hyphenated Techniques

Non-Targeted Screening in Sustainable Fuels: Exploring Method Development and Fuel Quality Assessment Using GCxGC-MS and Hyphenated Techniques

Exploring Method Development and Fuel Quality Assessment Using GCxGC-MS and Hyphenated Techniques

GCMS webináře se zaměřením na GC/MS | LabRulez GCMS