Optimize Analysis of Polar and Coeluting VOCsin Whole Air Canister Samples Usingan Rtx®-VMS GC ColumnBy Jason S. Herrington, Ph.D.Laboratories that analyze volatile organic compounds (VOCs) in whole air canister samples often follow U.S. EnvironmentalProtection Agency (EPA) Compendium Method TO-15 [1]....

TO-15 65 Component Mix on Rtx®-VMS (30 m)1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.24.25.26.27.28.29.30.31.32.33.34.35.PeaksPropyleneDichlorodifluoromethane (Freon® 12)1,2-Dichlorotetrafluoroethane (Freon® 114)ChloromethaneVinyl chloride1,3-ButadieneBromomethaneChloroethaneTrichlorofluoromethane (Freon® 11)1,1-DichloroetheneCarbon disulfideEthanol1,1,2-Trichlorotrifluoroethane (Freon® 113)AcroleinIsopropyl alcoholMethylene chlorideAcetonetrans-1,2-DichloroetheneHexaneMethyl tert-butyl ether (MTBE)Acetonitrile (contaminant)1,1-DichloroethaneVinyl acetatecis-1,2-DichloroetheneCyclohexaneBromochloromethane (IS)ChloroformCarbon tetrachlorideEthyl acetateTetrahydrofuran1,1,1-Trichloroethane2-Butanone (MEK)HeptaneBenzene1,2-DichloroethanetR (min)1.421.461.601.631.721.752.012.132.262.672.682.702.722.963.143.143.193.263.333.373.573.753.974.184.334.344.404.504.524.534.564.664.844.875.0436.37.38.39.40.41.42.43.44.45.46.47.48.49.50.51.52.53.54.55.56.57.58.59.60.61.62.63.64.65.66.67.68.69.70.54,55PeaksTrichloroethylene1,4-Difluorobenzene (IS)1,2-DichloropropaneBromodichloromethaneMethyl methacrylate1,4-Dioxanecis-1,3-DichloropropeneTolueneTetrachloroethene4-Methyl-2-pentanone (MIBK)trans-1,3-Dichloropropene1,1,2-TrichloroethaneDibromochloromethane1,2-Dibromoethane2-Hexanone (MBK)Chlorobenzene-d5 (IS)ChlorobenzeneEthylbenzenem-Xylenep-Xyleneo-XyleneStyreneBromoform4-Bromofluorobenzene*1,1,2,2-Tetrachloroethane4-Ethyltoluene1,3,5-Trimethylbenzene1,2,4-Trimethylbenzene1,3-Dichlorobenzene1,4-DichlorobenzeneBenzyl chloride1,2-DichlorobenzeneHexachlorobutadiene1,2,4-TrichlorobenzeneNaphthalenetR (min)5.365.405.835.896.056.116.486.707.077.107.137.297.467.707.988.258.278.318.488.488.969.029.039.659.929.9610.0810.5510.9211.0411.3711.5713.1413.1513.42*Tuning standard57,584451,525333,34366328,29,301918 201.0064 6567426049...

TO-15 65 Component Mix on Rtx®-VMS (30 m, 1.2 mL/min)1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.PeaksPropyleneDichlorodifluoromethane (Freon® 12)1,2-Dichlorotetrafluoroethane (Freon® 114)ChloromethaneVinyl chloride1,3-ButadieneAcetaldehyde (contaminant)BromomethaneChloroethaneTrichlorofluoromethane (Freon® 11)1,1-DichloroetheneEthanolCarbon disulfide1,1,2-Trichlorotrifluoroethane (Freon® 113)AcroleinIsopropyl alcoholMethylene chlorideAcetonetrans-1,2-DichloroetheneAcetonitrile (contaminant)tR (min)1.982.032.192.242.342.362.642.682.812.963.453.463.463.503.793.994.014.074.164.24PeaksHexaneMethyl tert-butyl ether (MTBE)1,1-DichloroethaneVinyl acetatecis-1,2-DichloroetheneCyclohexaneBromochloromethane (IS)ChloroformCarbon tetrachlorideEthyl acetateTetrahydrofuran1,1,1-Trichloroethane2-Butanone (MEK)HeptaneBenzene1,2-DichloroethaneTrichloroethylene1,4-Difluorobenzene (IS)1,2-DichloropropaneBromodichloromethane21.22.23.24.25.26.27.28.29.30.31.32.33.34.35.36.37.38.39.40.tR (min)4.244.284.765.035.305.485.495.585.705.725.745.785.916.136.186.416.826.867.437.5041.42.43.44.45.46.47.48.49.50.51.52.53.54.55.56.57.58.59.60.61.62.63.64.65.66.67.68.69.70.71.55,56PeaksMethyl methacrylate1,4-Dioxanecis-1,3-DichloropropeneTolueneTetrachloroethene4-Methyl-2-pentanone (MIBK)trans-1,3-Dichloropropene1,1,2-TrichloroethaneDibromochloromethane1,2-Dibromoethane2-Hexanone (MBK)Chlorobenzene-d5 (IS)ChlorobenzeneEthylbenzenem-Xylenep-Xyleneo-XyleneStyreneBromoform4-Bromofluorobenzene*1,1,2,2-Tetrachloroethane4-Ethyltoluene1,3,5-Trimethylbenzene1,2,4-Trimethylbenzene1,3-Dichlorobenzene1,4-DichlorobenzeneBenzyl chloride1,2-DichlorobenzeneHexachlorobutadiene1,2,4-TrichlorobenzeneNaphthalenetR...

NJ Low Level TO-15 75 Component Mix on Rtx-VMS (60 m, 40 °C start)49,50,51• Separate all 75 New Jersey lowlevel TO-15 compounds.• Higher starting temperature (40 °C)reduces time required for oven toreturn to temperature during hotweather.4841,4244473634,353732,33 384357,58,59 68,695260,61534510,11,12321574684.005.0013,1415,1619,2018 2124253126 27...