US EPA Method 8260: GC Analysis of Volatiles on VOCOL® after Purge & Trap using "K" Trap, Fast GC Analysis
材料
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标准
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样品制备
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吹扫/捕集 K Vocarb® 3000
for use with Tekmar® Velocity XPT, LSC-1, LSC-2, LSC-2000, 4000 (Straight, 12 in./30.5 cm, Swagelok fitting), HT-3相关产品
配件
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Hamilton®注射器,1000系列,PTFE Luer锁
1005SLPT (for Purge & Trap), volume 5 mL, needle size (not included)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
1 min
desorption preheat
205 °C
desorption process
150 mL/min at 210 °C for 1 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
220 °C
scan range
m/z = 35-400
carrier gas
helium, 1.5 mL/min
injection
100:1 split
liner
0.75 mm I.D. SPME
说明
法律信息
VOCOL is a registered trademark of Merck KGaA, Darmstadt, Germany