技术
gas chromatography (GC): suitable
试验参数
sample/matrix: each analyte at 10 ppb in 25 mL water
purge trap: VOCARB 3000 "K" (24940-U)
dry purge: 2 min
desorption preheat: 205 °C
desorption process: 40 mL/min at 210 °C for 2 min
bake: 260 °C for 10 min
transfer line/valve temp.: 110 °C
sample preparation: purge is 40 mL/min at 25 °C for 11 min
column: SPB-624, 30 m x 0.25 mm I.D., 1.4 μm (24255)
oven: 40 °C (2 min), 7 °C/min to 135 °C, 30 °C/min to 230 °C (3 min)
carrier gas: helium, 1.2 mL/min
injection: 30:1 split
liner: 0.75 mm I.D. SPME
应用
environmental
food and beverages
分析说明
Method 524.2 describes the analysis of volatile organic compounds in surface, ground, and drinking water. This application illustrates the analysis of the compounds listed in this method on a 30m x 0.25 mm I.D., 1.4 μm SPB-624 column using purge and trap / GC-MS.
分析物
说明
m-Xylene
p-Xylene
标准
产品编号
说明
价格
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