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EPA Method 524.2 on Rtx-502.2

ColumnRtx-502.2, 40 m, 0.18 mm ID, 1.00 µm (cat.# 40915)
SampleDrinking Water VOA MegaMix, 524.2 Rev. 4.1 (cat.# 30052)
Conc.:200 ppb VOA standards in 5mL RO water
Injectionpurge and trap split (split ratio 30:1)
Liner:1mm Split (cat.# 20973)
Inj. Temp.:200 °C
Purge and Trap
Instrument:Tekmar LCS 2000
Trap Type:Vocarb 4000
Purge: 11 min @ ambient, flow 40 mL/min
Desorb Preheat Temp.:250 °C
Desorb: 2 min @ 245 °C, flow 30 mL/min
Interface Connection:injection port
Transfer Line Tubing:Siltek/Sulfinert Tubing(cat.# 22504)
Oven
Oven Temp.:35 °C (hold 4 min) to 150 °C at 6 °C/min to 220 °C at 8 °C/min (hold 8 min)
Carrier GasHe, constant pressure
Linear Velocity:21 cm/sec @ 35 °C
DetectorMS
Mode:Scan
Transfer Line Temp.:250 °C
Tune Type:BFB
Ionization Mode:EI
Scan Range:35-300 amu
InstrumentHP5890 GC & 5971 MSD
NotesOptimized Using Pro ezGC software