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Volatile Organics US EPA CLP 04.1 on Rtx-VMS

ColumnRtx -VMS, 30 m, 0.25 mm ID, 1.40 µm (cat.# 19915)
Standard/SampleCLP 04.1 VOA CAL2000 MegaMix, 2000μg/mL in methanol (cat.# 30456)
502.2 Calibration Mix #1 (gases), 2000μg/mL in methanol (cat.# 30042)
VOA Calibration Mix #1 (ketones), 5000μg/mL in methanol/water (90:10) (cat.# 30006)
VOA Internal Standard Mix, 2500μg/mL in methanol (cat.# 30011)
VOA Surrogate Spike Mix, 2500ug/mL in methanol (cat.# 30004)
Diluent:25mL water
Conc.: 20 ppb each analyte, ketones 100 ppb each
Injectionpurge and trap split (split ratio 35:1)
Liner:1mm Split (cat.# 20972-214.1)
Inj. Temp.:200 °C
Purge and Trap
Instrument:OI 4660 Eclipse Purge and Trap
Trap Type:#10 (Tenax/silica gel/carbon molecular sieve)
Purge: 11 min, flow 40 mL/min
Desorb Preheat Temp.:185 °C
Desorb: 0.5 min @ 190 °C, flow 35 mL/min
Bake: 8 min @ 210 °C
Interface Connection:injection port
Transfer Line Temp.:150 °C
Oven Temp.:40 °C (hold 4 min) to 90 °C at 16 °C/min to 220 °C at 32 °C/min (hold 5 min)
Carrier GasHe, constant flow
Linear Velocity:34 cm/sec @ 40 °C
Transfer Line Temp.:150 °C
Ionization Mode:EI
Scan Range:35-300 amu