US EPA Method OLM04.2 VOA: GC Analysis of Volatiles on VOCOL® after Purge & Trap using "K" Trap, Fast GC Analysis
Materials
Analytical column
Product No.
Description
Pricing
CONDITIONS
sample/matrix
each analyte at 50 ppb in 5 mL water
purge trap
VOCARB 3000 “K”
purge
40 mL/min at 25 °C for 11 min
dry purge
2 min
desorption preheat
205 °C
desorption process
150 mL/min at 210 °C for 2 min
bake
260 °C for 10 min
transfer line/valve temp.
110 °C
column
VOCOL, 20 m × 0.18 mm I.D., 1.0 μm (28463-U)
oven
40 °C (0.8 min), 19 °C/min to 125 °C, 32 °C/min to 220 °C (1 min)
inj. temp.
150 °C
MSD interface
200 °C
scan range
m/z = 35-400
carrier gas
helium, 1.4 mL/min
injection
100:1 split
liner
0.75 mm I.D. SPME
Description
Legal Information
VOCOL is a registered trademark of Merck KGaA, Darmstadt, Germany