Vědci z Ústavu organické chemie a biochemie AV ČR pronikají do detailů genové transkripce. Popsali dosud neznámý molekulární mechanismus, kterým může začínat přepis genetické informace z deoxyribonukleové kyseliny (DNA) do ribonukleové kyseliny (RNA). Zaměřili se na zvláštní molekuly nazývané alarmony, které se vyskytují v buňkách napříč organismy a jejichž hladina se často zvyšuje při buněčném stresu. Výsledky výzkumu zveřejnil prestižní vědecký časopis Nature Chemical Biology.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/UOCHB_Vyzkum_z_UOCHB_odhaluje_dosud_nepoznany_zpusob_prepisu_geneticke_informace_bc2bfffa6c.jpg" alt="ÚOCHB/Tomáš Belloň: Výzkum z ÚOCHB odhaluje dosud nepoznaný způsob přepisu genetické informace: Dr. Hana Cahová, vedoucí vědecké skupiny Chemická biologie nukleových kyselin." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_UOCHB_Vyzkum_z_UOCHB_odhaluje_dosud_nepoznany_zpusob_prepisu_geneticke_informace_bc2bfffa6c.jpg 234w," sizes="100vw" width="2000" height="1335"><div>RNA molekuly mohou nést na jednom konci různé chemické modifikace, označované jako tzv. „čepičky“. U eukaryotních organismů, kam patří i lidské buňky, je nejznámější čepička, která se podílí na stabilitě RNA a regulaci jejího dalšího osudu. V posledních letech se však ukazuje, že existují i alternativní, nekanonické RNA čepičky, jejichž vznik a mechanismus připojení k RNA se zatím vymyká lidským znalostem. Mezi ně patří například tzv. alarmonové čepičky, tvořené molekulami dinukleosidpolyfosfátu, alarmonů, které chrání buněčnou RNA ve chvílích, kdy je buňka v ohrožení.Tým <a target="_blank" rel="noopener noreferrer" href="https://cahova.group.uochb.cz/cs">Dr. Hany Cahové</a> se ve své studii zaměřil na RNA polymerázu z bakterií a sledoval, jakým způsobem může tento enzym zahájit transkripci za využití dinukleosidpolyfosfátů (NpNs) místo běžných stavebních bloků RNA. Vědci vůbec poprvé popsali na atomární úrovni, jak může vznikat RNA s alarmonovou čepičkou přímo při zahájení přepisu genu. Navíc pozorovali, že se NpnNs vážou jiným typem párování, než je obvyklé.Na práci se zásadně podílely Valentina Serianni z týmu Hany Cahové, která prokázala schopnost dinukleosidpolyfosfátů zahajovat přepis genu, a Jana Škerlová, která se zaměřila na strukturální analýzu RNA polymerázy a na základě dat z kryogenní elektronové mikroskopie ukázala, jak se molekuly dinukleosidpolyfosfátů váží do aktivního místa RNA polymerázy, tedy do srdce enzymu, kde se genetická informace přepisuje. Jejich studie pomáhá odhalovat procesy, které provázejí přepis genetické informace z DNA do RNA.Hana Cahová k tomu dodává: „Popisujeme něco, co se v buňkách skutečně děje a co nyní dokážeme pozorovat přímo na úrovni jednotlivých molekul. Získáváme tak odpovědi na zásadní otázky týkající se buněčných procesů, například jak se buňky přizpůsobují stresu. Právě RNA totiž přenáší kaskádu informací, které stojí za jakoukoli buněčnou reakcí, např. na stav ohrožení způsobený nedostatkem živin či teplotním šokem.“<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/UOCHB_Vyzkum_z_UOCHB_odhaluje_dosud_nepoznany_zpusob_prepisu_geneticke_informace_2_0fe88ff9e9.jpg" alt="ÚOCHB/Tomáš Belloň: Výzkum z ÚOCHB odhaluje dosud nepoznaný způsob přepisu genetické informace: Dr. Tomáš Kouba, vedoucí core facillity skupiny Kryogenní elektronová mikroskopie." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_UOCHB_Vyzkum_z_UOCHB_odhaluje_dosud_nepoznany_zpusob_prepisu_geneticke_informace_2_0fe88ff9e9.jpg 234w," sizes="100vw" width="2000" height="1335"><div>Klíčovou roli v projektu sehrála kryogenní elektronová mikroskopie (cryo-EM), kterou vedl Dr. Tomáš Kouba, jeden z autorů článku. „Kryoelektronová mikroskopie umožňuje zmrazit biologické molekuly skoro v jejich přirozené formě a následné získat trojrozměrnou strukturu takových molekul. Díky tomu můžeme nahlédnout přímo do aktivního centra enzymů a sledovat jejich fungování až na atomární úrovni,“ vysvětluje Tomáš Kouba.ÚOCHB vloni otevřel nové <a target="_blank" rel="noopener noreferrer" href="https://cryoem.group.uochb.cz/cs">centrum cryo-EM</a>, které je v českém prostředí unikátní. Špičkové kryogenní elektronové mikroskopy našly zázemí ve speciálně navržené budově a umožňují studium biologických procesů s mimořádnou strukturální přesností.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/UOCHB_Vyzkum_z_UOCHB_odhaluje_dosud_nepoznany_zpusob_prepisu_geneticke_informace_3_4d881e7a58.jpg" alt="ÚOCHB: Výzkum z ÚOCHB odhaluje dosud nepoznaný způsob přepisu genetické informace: Tato práce ukazuje, jak malé molekuly NpnN pomáhají bakteriím zahájit přepis genetické informace. Detailní zobrazení pomocí kryogenní elektronové mikroskopie odhaluje, jak se vážou na genetickou šablonu a fungují jako nekanonické „čepičky“ RNA." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_UOCHB_Vyzkum_z_UOCHB_odhaluje_dosud_nepoznany_zpusob_prepisu_geneticke_informace_3_4d881e7a58.jpg 245w," sizes="100vw" width="2000" height="1077"><blockquote><h4>Původní článek</h4><h4><a target="_blank" rel="noopener noreferrer" href="https://www.nature.com/articles/s41589-025-02134-5#citeas">Molekulární vhled do 5′ zakončení RNA pomocí NpnNs zprostředkovaného bakteriální RNA polymerázou</a></h4>Valentina M. Serianni, Jana Škerlová, Anna Knopp Dubánková, Anton Škríba, Hana Šváchová, Tereza Vučková, Anatolij Filimoněnko, Milan Fábry, Pavlína Řezáčová, Tomáš Kouba &amp; Hana Cahova&nbsp;Nat. Chem. Biol. 21 (2026)<a target="_blank" rel="noopener noreferrer" href="https://doi.org/10.1038/s41589-025-02134-5">https://doi.org/10.1038/s41589-025-02134-5</a><h6>licencováno pod <a target="_blank" rel="noopener noreferrer" href="https://creativecommons.org/licenses/by/4.0/">CC-BY 4.0</a></h6></blockquote><h4>Abstrakt</h4>RNA zakončená dinukleosidovými polyfosfáty byla u bakterií i eukaryot objevena teprve nedávno. Pravděpodobný mechanismus tohoto specifického typu zakončení RNA spočívá v přímém začlenění dinukleosidových polyfosfátů RNA polymerázou jako nekanonických iniciačních nukleotidů. Dosud však nebylo známo, jakým způsobem se tyto sloučeniny vážou do aktivního místa RNA polymerázy během zahájení transkripce. V této práci jsme in vitro studovali iniciaci transkripce za použití série DNA templátů v kombinaci s dinukleosidovými polyfosfáty a modelovou RNA polymerázou z bakterie Thermus thermophilus. Zjistili jsme, že místo zahájení transkripce se může lišit v závislosti na kompatibilitě konkrétního templátu a použitého dinukleosidového polyfosfátu. Struktury iniciačních transkripčních komplexů s dinukleosidovými polyfosfáty získané pomocí kryogenní elektronové mikroskopie odhalily, že obě nukleové báze v molekule mohou párovat s DNA templátem. První kódovaný nukleotid se páruje kanonickým Watsonovým–Crickovým způsobem, zatímco druhá nukleová báze se váže nekanonicky prostřednictvím reverzního Watsonova–Crickova párování. Tato práce tak poskytuje strukturní vysvětlení mechanismu, kterým dinukleosidové polyfosfáty zahajují transkripci RNA.</div></div>

Výzkum z ÚOCHB odhaluje dosud nepoznaný způsob přepisu genetické informace

V týdnu od 9. února na Vás čekají v oblasti plynné/pevné fáze a především GC, GC/MS, Raman a FTIR následující webináře.<blockquote><h4><a target="_blank" rel="noopener noreferrer" href="https://www.gcms.cz/webinars">👉 DETAILY A REGISTRACE V SEKCI WEBINÁŘE</a></h4></blockquote><blockquote>👉 Vyhledávejte a filtrujte v největší globální databázi s více než 5 000 GC, HPLC, MS a spektroskopickými webináři.</blockquote><h5>1. Thermo Fisher Scientific: Process Raman: A Reliable and Versatile Tool For Downstream Process Monitoring and Control For mAB Production</h5><ul><li>Út, 10. 2. 2026 16:00 CET</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.cz/webinar/5808">Registrace</a></li></ul>Webinář ukazuje, jak procesní Ramanova spektroskopie překonává tradiční in-line UV-Vis při monitorování downstream procesů, řízení produkce metabolitů a kontrole výroby monoklonálních protilátek.<h5>2. Wasson-ECE Instrumentation: The Data Driven Plant; How AI Transforms Chemical Manufacturing</h5><ul><li>Út, 10. 2. 2026 21:30 CET</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.cz/webinar/5744">Registrace</a></li></ul>Přehled využití umělé inteligence pro optimalizaci chemické výroby – od řízení procesů přes prediktivní údržbu až po podporu datově řízeného rozhodování.<h5>3. New Food magazine: The Science of Next-Gen Ingredients: Fermentation, Formulation and Function</h5><ul><li>St, 11. 2. 2026 16:00 CET</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.cz/webinar/5720">Registrace</a></li></ul>Webinář se zaměřuje na fermentační technologie nové generace a jejich roli při vývoji funkčních potravinářských ingrediencí se zlepšenou chutí, stabilitou a nutriční hodnotou.<h5>4. Altium International (HPST): Příprava vzorků pro analýzu vitamínů rozpustných v tucích – tipy a aplikace</h5><ul><li>Pá, 13. 2. 2026 10:00 CET</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.cz/webinar/5891">Registrace</a></li></ul>Prakticky zaměřený webinář věnovaný přípravě vzorků pro stanovení vitamínů rozpustných v tucích v komplexních lipidových matricích s důrazem na reprodukovatelnost a kvalitu dat.

Webináře LabRulezGCMS týden 07/2026

<h3><a target="_blank" rel="noopener noreferrer" href="https://www.isc2026.org/">O ISC 2026</a></h3><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/companies/314">Mezinárodní sympozium o chromatografii (International Symposium on Chromatography, ISC)</a> představuje nejstarší konferenční sérii v oblasti separačních věd. Sympozia ISC jsou pořádána od roku 1956 v každém sudém roce. ISC patří mezi nejvýznamnější světová setkání zaměřená na diskusi všech forem chromatografie a separačních metod, s širokým pokrytím technik a aplikací.Hlavním zaměřením sympozia bude přínos chromatografie a separačních věd pro potřeby farmaceutického, environmentálního, potravinářského a zdravotnického průmyslu, stejně jako pro vědu a medicínu. Program sympozia bude tyto oblasti reflektovat a upozorní na nové výzvy i vznikající příležitosti ve vývoji, aplikaci a marketingu separačních a detekčních systémů a metod.Nedílnou součástí vědeckého programu přednášek a posterových sekcí bude mezinárodní výstava a firemní semináře zaměřené na instrumentaci a služby v oblasti chromatografie, separačních věd a hmotnostní spektrometrie. ISC 2026 nabídne ideální platformu pro vědeckou výměnu a networking účastníků z akademické sféry, průmyslu i státních výzkumných institucí.<h3>Klíčová data sympozia ISC 2026</h3>6.–10. září 2026<ul><li>15. ledna 2026 – Zahájení registrace za zvýhodněnou cenu (early-bird) a podávání abstraktů</li><li>11. března 2026 – Uzávěrka podávání abstraktů (ústní prezentace)</li><li>21. dubna 2026 – Odeslání rozhodnutí o přijetí (ústní prezentace)</li><li>15. května 2026 – Uzávěrka registrace a platby za zvýhodněnou cenu &amp; registrace autorů (ústní prezentace)</li><li>1. června 2026 – Zveřejnění předběžného detailního programu</li><li>1. června 2026 – Uzávěrka podávání abstraktů (postery)</li><li>16. června 2026 – Odeslání rozhodnutí o přijetí (postery)<ul><li>Autoři, kteří podají abstrakt s preferencí posteru do 5. května 2026, budou o výsledku informováni do 12. května 2026 a budou mít možnost využít zvýhodněnou registraci do 15. května 2026.</li></ul></li><li>30. června 2026 – Uzávěrka registrace autorů (postery)</li><li>30. července 2026 – Uzávěrka podávání abstraktů (pozdní postery – late-breaking)<ul><li>bez možnosti soutěžit o cenu za nejlepší poster</li></ul></li><li>11. srpna 2026 – Odeslání rozhodnutí o přijetí (pozdní postery)</li><li>18. srpna 2026 – Uzávěrka registrace autorů (pozdní postery)</li><li>25. srpna 2026 – Uzávěrka pozdní registrace a platby</li><li>6.–10. září 2026 – Konání sympozia</li></ul><h3>Registrace</h3><blockquote>👉 <a target="_blank" rel="noopener noreferrer" href="https://www.czech-in.org/cmPortalV15/Account/Login?ReturnUrl=%2FcmPortalV15%2FPortal%2FISC26%2Fnormal">Zaregistrujte se na ISC 2026</a></blockquote><h3>Podávání abstraktů</h3><blockquote><a target="_blank" rel="noopener noreferrer" href="https://www.czech-in.org/cmPortalV15/Account/Login?ReturnUrl=%2FcmPortalV15%2FPortal%2FISC26%2Fnormal">👉 Nahrajte svůj abstrakt zde</a></blockquote><h3>VĚDECKÝ PROGRAM - KRÁTKÉ KURZY</h3><h4>SC 3 – Interpretace hmotnostních spekter: základní úvod pro chromatografisty</h4>🗓️ Neděle, 6. září 2026 🕗 8:30–11:45Hmotnostní spektrometrie se stala nepostradatelným nástrojem moderní kapalinové chromatografie, přesto však mnoho chromatografistů absolvuje pouze omezené formální vzdělání v oblasti interpretace hmotnostních spekter. Tento úvodní krátký kurz nabízí praktického průvodce porozuměním a interpretací hmotnostních spekter získaných pomocí ionizačních technik za atmosférického tlaku, které jsou spojeny s LC: ionizace elektrosprejem (ESI), chemická ionizace za atmosférického tlaku (APCI) a fotoionizace za atmosférického tlaku (APPI).Kurz začíná vysvětlením, jaké dodatečné informace přináší hmotnostní spektrometrie oproti samotnému chromatogramu, a objasněním, na které analytické otázky dokáže – a na které naopak nedokáže – hmotnostní spektrometrie odpovědět. Účastníci získají stručné zopakování základních principů hmotnostní spektrometrie spolu s úvodem do klíčové terminologie.Následně jsou diskutovány principy a praktické důsledky jednotlivých ionizačních metod, se zvláštním důrazem na to, jak fyzikální podstata ionizace, chromatografické podmínky a přísady v mobilní fázi ovlivňují podobu výsledných spekter. Na tomto základě kurz rozvíjí praktické dovednosti potřebné pro interpretaci LC-ESI spekter: identifikaci molekulárního iontu, určení nábojového stavu, rozpoznání běžných aduktů, odlišení artefaktů vznikajících přímo ve zdroji a využití izotopových vzorů k podpoře hypotéz o elementárním složení.Účastníci se dále seznámí s tím, jak fragmentace MS/MS poskytuje strukturální informace, a osvojí si jednoduchá praktická pravidla pro interpretaci neutrálních ztrát a fragmentačního chování jednotlivých tříd látek. Kurz je zakončen integračním cvičením, které kombinuje chromatografická data, full-scan spektra a MS/MS informace pro komplexní interpretaci naměřených výsledků.Na konci kurzu budou účastníci vybaveni základními dovednostmi potřebnými pro efektivní interpretaci LC-MS spekter a pro praktické využití hmotnostně spektrometrického uvažování v rutinní chromatografické analýze.<h4>Lektoři</h4><h5>Josef Cvačka</h5><a target="_blank" rel="noopener noreferrer" href="https://lcms.cz/articles?search=Josef+Cva%C4%8Dka">Josef Cvačka</a> je vedoucím Skupiny hmotnostní spektrometrie na Ústavu organické chemie a biochemie AV ČR a docentem na Přírodovědecké fakultě Univerzity Karlovy v Praze. Jeho výzkum se zaměřuje na strukturní analýzu bioaktivních organických sloučenin pomocí pokročilých hmotnostně spektrometrických technik. Vyvíjí metody pro určování polohy dvojných vazeb a methylových větvení v lipidech a usiluje o objevování nových tříd lipidů v biologických vzorcích. Jeho laboratoř se rovněž věnuje vývoji nových iontových zdrojů pro MS a HPLC/MS. Působí jako pedagog a školitel studentů na Univerzitě Karlově a je zakladatelem <a target="_blank" rel="noopener noreferrer" href="https://lcms.cz/articles?search=%C4%8Cesk%C3%A9+muzeum+hmotnostn%C3%AD+spektrometrie">Českého muzea hmotnostní spektrometrie</a>.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Josef_Cvacka_5cc8a0d1d4.jpg" alt="ISC 2026: Josef Cvačka" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Josef_Cvacka_5cc8a0d1d4.jpg 156w," sizes="100vw" width="510" height="510">

ISC 2026 – Krátký kurz 3: Interpretace hmotnostních spekter: základní úvod pro chromatografisty

Webináře

Věda a výzkum

Video

Článek

Nejbližší akce

ÚOCHB AV ČR je přední mezinárodně uznávaná vědecká instituce, jejímž hlavním posláním je základní výzkum v oblasti chemické biologie a medicinální chemie, organické a materiálové chemie, chemie přírodních látek, biochemie a molekulární biologie, fyzikální chemie, teoretické chemie a analytické chemie.

Ústav organické chemie a biochemie AV ČR

Vše ze světa analytické chemie na jednom místě. Propojujeme lidi při řešení jejich problémů. U nás naleznete všechny potřebné informace snadno, rychle a přehledně. Přestaňte hledat a začněte nacházet.

LabRulez

The International Symposium on Chromatography (ISC) represents the oldest conference series focussing on separation science. ISC symposia have been organised since 1956 in each even year. ISC is internationally recognised as one of the premier meeting series for discussion of all modes of chromatography and separation science with a broad coverage of techniques and applications.

International Symposium on Chromatography - (ISC)

Agilent Technologies

LECO

C&EN

Waters Corporation

Contaminants in the sample matrix can create chromatography issues, system downtime, and unreliable test results. Having clean samples can help prevent most of these problems. There are many options for sample cleanup.
We’ll discuss the following options:
<ul>
<li>Solid phase extraction (SPE), which provides the cleanest sample.
</li>
<li>“Targeted” filtration, which can remove specific interferences from the sample matrix and provides clean samples.
</li>
</ul>
In this talk, we’ll discuss tips for selecting, developing, and implementing SPE methods. We’ll also discuss newly developed targeted filtration options and their benefits.
<blockquote>
Presenter: Golnar Javadi (Application Engineer, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Golnar Javadi is an applications engineer providing online applications assistance and technical support for LC columns and supplies, Sample Preparation products, and Spectroscopy supplies.
</blockquote>
<blockquote>
Before joining Varian and then Agilent, Golnar worked in the pharmaceutical and nutraceutical industries on method development and quality control. She also taught college level chemistry courses for a few years.
</blockquote>
<blockquote>
Golnar then joined Varian as a technical support specialist, providing customers with method development assistance and technical support on Sample Preparation (SPE, SLE, and Filtration), HPLC, GC, ToxiLab and DAT. After the Varian-Agilent merger, Golnar joined Agilent Technologies as an Applications Engineer. She provides technical support to customers on Sample Preparation products, Liquid Chromatography columns, and Spectroscopy supplies.
</blockquote>

Agilent Technologies: Sample Cleanup: Method Development for Solid Phase Extraction and Beyond

Sample Cleanup: Method Development for Solid Phase Extraction and Beyond

We’ll discuss tips for selecting, developing, and implementing SPE methods. We’ll also discuss newly developed targeted filtration options and their benefits.

Sample Cleanup: Method Development for SPE

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

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: 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

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

Non-Targeted Screening in Sustainable Fuels

Missed Our Annual Informatics User Conference? We’ve got you covered!&nbsp;We’re hosting a live webinar to recap the hottest topics from the conference. Don’t miss this opportunity to stay informed and engaged with the latest in Waters informatics. The webinar will include a live Q&amp;A session with our panel of experts.<h5>AGENDA INCLUDES:</h5><h4>Reviewing Data and Audit Trails in Empower</h4>In this session, we will explore best practices and essential tools for reviewing data and audit trails in Empower. You’ll gain valuable insights to streamline your data review and ensure compliance.<h4>Elevate Empower with our latest Cloud Solutions</h4>In this session we’ll explore new cloud tools designed to elevate your Empower experience. Get a sneak peek at solutions that enhance data integrity, ensure compliance, and boost lab productivity. Whether you’re an administrator, end user, lab manager, or data scientist, you’ll learn about applications that can streamline your daily tasks and simplify your workflow.<h4>LIVE Q &amp; A</h4>Engage with our panel of experts and have your pressing questions addressed during the live Q &amp; A session.<blockquote>Presenter:&nbsp;Jason Loftus (Senior Informatics Sales Development Specialist, Waters Corporation)After getting his BS in Chemistry, Jason worked as a QC Chemist for a consumer products company in Massachusetts. In 1998, he joined Waters as a Field Service Engineer based in Boston, MA. In 2001, he left Waters to join a biopharma company in Colorado, but returned to Waters in 2004 as a Field Service Engineer covering the southwestern US. In 2010, he became the Service Manager for the Mountain Region covering most of the western US. In 2016, he joined the Informatics Sales Development team and currently covers the western US, western Canada, and the southeastern US.Presenter:&nbsp;Ron Eddy (Principal Informatics Sales Development Specialist, Waters Corporation)Ron has been with Waters Corporation since 2005 when he joined the company as an Empower Sales Specialist. He has since moved into his current role supporting the Informatics sales team for Empower and NuGenesis. Prior to joining Waters, Ron worked as an analytical chemist in the pharmaceutical industry supporting the registrational phase of drug development for seven years before transitioning to a laboratory informatics role where he managed and supported various laboratory computing systems including Millennium/Empower, NuGenesis, LIMS and ELNs.Presenter:&nbsp;Shelby Lorenz (Manager, Informatics Business Development, Waters Corporation)Shelby has more than 20 years of experience in the Life Science industry. She has worked for Waters for more than 20 years and has held a variety of positions all within the Informatics organization. In her current role, she manages the Informatics Business Development team in the Americas, which has technical presales responsibility for the enterprise informatics product line including Empower, NuGenesis LMS, and waters_connect network. Prior to Waters she was a Project Manager at Creon Lab Control supporting a host of informatics products including LIMS, ELN and SDMS. Shelby holds a Bachelor of Science degree in Management Information Systems.Presenter: Lissa Wang (Informatics Business Development Specialist, Waters Corporation)Lissa has been with Waters Corporation since 1998 when she started to be a Millennium/Empower Trainer in the Customer Education department. She has also been in different roles including Technical Service and Global Service and Support for Informatics. Currently, she is part of the Informatics Business Development team supporting the Informatics sales team for Empower and NuGenesis informatics portfolio. Prior to joining Waters, Lissa worked as an analytical chemist in the pharmaceutical, biotechnology and medical device industries for 8 years across the globe and the US.</blockquote>

Waters Corporation: ICYMI (In Case You Missed It) - Empower Hot Topics from [inform] 2024

ICYMI (In Case You Missed It) - Empower Hot Topics from [inform] 2024

Best practices and essential tools for reviewing data and audit trails in Empower.

ICYMI (In Case You Missed It) - Empower Hot Topics

<h4>The Waters 2024 Virtual Summer School - An Educational Journey to Master Food &amp; Environmental Analysis</h4>Unlock the full potential of LC-MS techniques with our immersive and educational sessions at the Waters Virtual F&amp;E Late Summer School 2024. From September 24th to 26th, engage with leading experts and discover cutting-edge methods for environmental and food analysis.<h5>Why attend?</h5><ul><li>Comprehensive Learning: Dive deep into advanced LC-MS techniques and gain practical knowledge to enhance your laboratory's analytical capabilities.</li><li>Expert Insights: Learn from industry leaders and gain firsthand experience through detailed modules on chromatography, mass spectrometry, and sample preparation.</li><li>Regulatory Compliance: Stay ahead with the latest insights on EU regulations for PFAS analysis in food and water, ensuring your lab meets stringent standards.</li></ul><h3>Episode #5: General Sample Preparation | F&amp;E Summer School - Day 2 - Module 1</h3>Sample preparation is a key aspect in the analytical workflow and heavily determines the quality of the analysis. Solid Phase Extraction is a fundamental sample preparation technique widely used across all areas of analytical chemistry. Whether new to SPE or seeking a refresher, this webinar will introduce the basics of sample preparation and provide practical insights and technical background on the benefits when choosing SPE over another form of sample preparation, especially for analytes in complex matrices, such as the ones often encountered in Food and Environmental analysis. Join us in exploring SPE key parameters and best practices for implementing successful SPE methods. The session will combine PowerPoint slides with videos describing good practices and showing a practical example on the complex analysis of PFAS.Our guest speaker Chiara Sarti from Cranfield University, Bedford UK, will share her research results on the work with new dual layer cartridges to extract PFAS from different environmental samples.<h5>What you'll learn:</h5><ul><li>Understanding SPE fundamentals</li><li>Making SPE simple with water-wettable sorbents</li><li>Verifying successful SPE implementation</li></ul><blockquote>Presenter:&nbsp;Xavier Rodríguez (Business Development Manager Chemistry Group, Southern Europe, Waters)Xavier is part of the European Market Development Team. He works as an Application Specialist with focus on sample prep and has more than 20 years of experience in solving sample prep challenges.Presenter:&nbsp;Chiara Sarti (Ph.D. Student, Department of Chemistry "Ugo Schiff", University of Florence)</blockquote>

Waters Corporation: The Waters 2024 Virtual Summer School

General Sample Preparation

Join us in exploring SPE key parameters and best practices for implementing successful SPE methods. 

<h4>The Waters 2024 Virtual Summer School - An Educational Journey to Master Food &amp; Environmental Analysis</h4>Unlock the full potential of LC-MS techniques with our immersive and educational sessions at the Waters Virtual F&amp;E Late Summer School 2024. From September 24th to 26th, engage with leading experts and discover cutting-edge methods for environmental and food analysis.<h5>Why attend?</h5><ul><li>Comprehensive Learning: Dive deep into advanced LC-MS techniques and gain practical knowledge to enhance your laboratory's analytical capabilities.</li><li>Expert Insights: Learn from industry leaders and gain firsthand experience through detailed modules on chromatography, mass spectrometry, and sample preparation.</li><li>Regulatory Compliance: Stay ahead with the latest insights on EU regulations for PFAS analysis in food and water, ensuring your lab meets stringent standards.</li></ul><h3>Episode #6: Automated Sample Preparation | F&amp;E Summer School - Day 2 - Module 2</h3>This Module builds on the previous one by adding automation to the sample preparation methods. The Andrew+™ pipetting robot offers fully automated liquid handling using electronic pipettes and labware holders called Dominos for a full walk-away automation solution.Creating the connected laboratory, Andrew+ is part of the OneLab™ ecosystem, executing laboratory protocols designed in OneLab software. This flexible architecture enables you to effortlessly transition from laborious manual pipetting procedures to error-free, fully-robotized lab workflows – without any knowledge of programming, laboratory robotics or automation engineering. and explains processes the Andrew+ pipetting robot can take over in your lab.The European Union has adopted Commission Recommendation (EU) 2022/1431 to monitor PFAS in fruits, vegetables, milk and baby food. To achieve quantification at lowest levels of PFAS in food matrices, sample preparation is required which comprise of many pipetting steps and can be time-consuming and error prone. We will demonstrate an automate workflow for the analysis of PFAS in milk using a pipetting robot and stacked dual-phase SPE cartridges to meet EU 2022/1431 levels.<h5>What you'll learn:</h5>Possibilities to automat liquid handling processes in LC and LC-MS e.g.<ul><li>Serial dilution</li><li>Calibration curve</li><li>Solid Phase Extraction (SPE)</li></ul><blockquote>Presenter:&nbsp;Xavier Rodríguez (Business Development Manager Chemistry Group, Southern Europe, Waters)Xavier is part of the European Market Development Team. He works as an Application Specialist with focus on sample prep and has more than 20 years of experience in solving sample prep challenges.Presenter:&nbsp;Daniel Ng PhD (Principal Scientist, Waters Corporation)Daniel Ng received his PhD from the University of Manchester in mass spectrometry proteomics. He worked for 5 years at the Waters mass spectrometry headquarters in Wilmslow, UK, as a service support development engineer specializing in mass spectrometry instrumentation. In 2019, he took up a new role as a principal scientist at the International Food and Water Research Centre (Waters) in Singapore focusing on using advanced instrumentation to answer analytical challenges in the food and water industry. Since 2023, Daniel has lead the Food, Environmental and Material Science Analytical Professional Service team in the Asia-Pacific Region, developing analytical solutions to meet key challenges that customers face.</blockquote>

Automated Sample Preparation

The Andrew+™ pipetting robot offers fully automated liquid handling using electronic pipettes and labware holders.

The global pharmaceutical market's growth has led to an alarming increase in substandard and falsified (SF) medicines, posing significant risks to public health.These dangerous products compromise patient safety and treatment efficacy, particularly in critical areas, such as antimalarials and antibiotics. Rapid, accurate detection methods are essential to combat this growing threat and ensure medication integrity across various settings, from pharmacies to field inspections.In this webinar, Drs. Basant Giri (Kathmandu Institute of Applied Sciences) and Toni Barstis (Saint Mary’s College) will share insights about their collaboration in Nepal where there were 346 drug recalls during the period from 2010 through 2020, with approximately 75% of those being substandard or falsified. Giri and Barstis are using novel paper-based devices and a handheld Raman spectrometer for field-expedient testing and more advanced method development. They will demonstrate how these tools can work together to improve the safety and efficacy of pharmaceuticals and the safety of consumer products. Adam Hopkins, Spectroscopy Product Manager from Metrohm USA, will briefly discuss the unique features of the MIRA handheld Raman analyzer that make it ideal for this critical work<h4>Key Learning Objectives:</h4><ul><li>Insight into the sacle of the SF medicine problem: Information crucial for audience to understand the scope of the issue and its potential impact on their operations and reputation</li><li>The underlying science behind field-expedient testing methods: Knowledge is relevant for QA teams and forensic chemists who need to implement or improve field-testing protocols</li><li>Discover a practical example of how to apply Raman in a real-world setting: Benefits those involved with global supply chain management and international quality assurance efforts</li><li>Technological advancements in handheld Raman: Helps decision-makers considering investments in new quality control equipment</li></ul><h4>Who Should Attend:</h4><ul><li>VPs and Chiefs of Product Quality</li><li>Quality assurance and management team members and leads</li><li>Supply chain managers</li><li>Forensic chemists and scientists</li><li>Anyone involved in or curious about pharmacovigilance activities</li></ul><blockquote>Presenter: Dr. Basant Giri (Senior Scientist, Kathmandu Institute of Applied Sciences)Presenter:&nbsp;Dr. Toni L.O. Barstis (Professor Emeritus, Saint Mary’s College, Notre Dame, IN)Presenter:&nbsp;Dr. Adam J. Hopkins (Spectroscopy Product Manager, Metrohm USA)Presenter:&nbsp;Ann Thayer (Contributing Editor, C&amp;EN Media Group)</blockquote>

C&EN: In-field Identification of Low-Quality Medicines using Handheld Raman

In-field Identification of Low-Quality Medicines using Handheld Raman

The global pharmaceutical market's growth has led to an alarming increase in substandard and falsified (SF) medicines.

In-field Identification of Low-Quality Medicines

Limited bench space, sustainability goals and rising energy costs. Pressure to turn around more samples in less time. Faced with these challenges, it’s more important than ever for your lab to maximize productivity, efficiency, and uptime.The Agilent 8850 GC is designed and engineered to help you do just that. Be it a pharmaceutical regulated lab, or high productive chemical analysis lab, or be it is food testing flavor or fragrance lab, 8850 GC is designed to improve productivity, efficiency, sustainability even though it is a compact size.<h4>Who can attend?</h4><ul><li>All scientists working on bench to know what's new in Agilent GC.</li><li>Lab heads who are concerned with lab productivity and optimizing bench space.</li><li>Decision makers who care about sustainability.</li></ul><blockquote>Presenter: Mr. Chandrasekar Kandaswamy, Ph.D. (Business Manager - GC, GC/MS, Agilent Technologies)With a career spanning over two decades, expert in the field of analytical method development. work has traversed various essential industries, from food safety, pharmaceuticals and fertilizer. At Agilent Technologies, his tenure since November 2009 as a method development scientist stands out for its collaborative nature. Working alongside key opinion leaders, he has addressed complex scientific inquiries and contributed significant findings to respected journals.The Ph.D. in chemistry from the National Institute of Technology, Tiruchirappalli, is a dedication to education and research. Moreover, his active engagement with the scientific community through numerous national and international presentations, in both oral and poster formats towards commitment to sharing knowledge and fostering dialogue within the field with 10 different journal publications.Presenter:&nbsp;Mr. Sarvendra Singh, Ph.D. (Product Specialist - GC, GCMS/MS, Agilent Technologies)A seasoned expert, Dr. Sarvendra Singh leverages 12+ years of expertise in Gas Chromatography and Mass Spectrometry to drive innovation and excellence. As a Product Specialist at Agilent Technologies, he crafts and delivers cutting-edge and tailored solutions that unlock new streams and enhance customer satisfaction across various market segments. Previously he was associated with renowned multinational testing laboratories, Dr. Singh developed and delivered numerous GC and GCMS/MS methods, enhancing quality, safety and delivered significant ROI for through improved efficiency and reduced costs.With a strong academic foundation (Ph.D., M.Tech, and B.Tech in Biotechnology), Dr. Singh has authored 13 publications in esteemed scientific journals and presented at 22 international conferences, sharing his insights on advanced analytical techniques and their applications. Altogether he brings a unique blend of technical and commercial acumen, empowering organizations to make data-driven decisions and stay ahead in a competitive landscape.</blockquote>

Agielnt Technologies: Unleash the Power of Small - Agilent New 8850 GC System

Unleash the Power of Small - Agilent New 8850 GC System

How to maximize productivity, efficiency, and uptime.

This session will provide a comprehensive introduction to the user interface, ensuring you can navigate with ease. Discover the various acquisition modes available and learn how to select the best one for your specific application.Additionally, we will explore the innovative Intelligent Reflex feature, highlighting its benefits in boosting your productivity.Whether you’re new to MassHunter or looking to refine your skills, this webinar is designed to enhance your understanding and efficiency.<blockquote>Presenter: Christian Hegmanns (Application Specialist LC/MS, Agilent Technologies, Waldbronn, Germany)Christian Hegmanns is a state-certified food chemist and works at Agilent as an LC/MS application specialist.With over 10 years of experience in the field of instrumental analysis, Christian develops customer-oriented solutions for a variety of applications with a focus on food analysis.</blockquote>

Agilent Technologies: MassHunter Masterclass Months

MassHunter Acquisition Q-TOF Part I – Basic Overview

Join us for an insightful webinar where we delve into the essentials of MassHunter Acquisition Q-TOF. 