測定文具中苯、甲苯、乙苯及二甲苯 詳細信息:
名稱:毛細管柱
規(guī)格:60m*0.25mm*1.4um
型號:HH-VRX
應(yīng)用:文具中苯、甲苯、乙苯及二甲苯的測定方法 氣相色譜法
樣品經(jīng)制備成測試樣后,注入氣相色譜儀中,苯、甲苯、乙苯、鄰二甲苯、間二甲苯和對二甲苯在毛細管色譜柱中與共存物質(zhì)分離后,用氫火焰離子化檢測器測定,以內(nèi)標法定量。
氣相色譜測試條件:
a)色譜柱:聚二甲基硅氧烷毛細管柱,60m×0.25mm 內(nèi)徑×1.4μm 膜厚;
b)進樣口溫度:235℃;
c)柱溫:初始溫度 50℃保持 1min,然后以 8℃/min 升 150℃保持 2min,再以 20℃/min 升溫
250℃,保持 5 min;
d)檢測器溫度:260℃;
e)載氣流速:2.0mL/min
f)分流比:分流進樣,分流比可調(diào)。
測定文具中苯、甲苯、乙苯及二甲苯 測試譜圖:
Determination of benzene, toluene, ethylbenzene and xylene in stationery
Determination of benzene, toluene, ethylbenzene and xylene in statio
Name: Capillary Column
Specification: 60m*0.25mm*1.4um
Model: HH-VRX
Application: Determination of benzene, toluene, ethylbenzene and xylene in statio
After the sample is prepared as a test sample, it is injected into the gas chromatograph. After the benzene, toluene, ethylbenzene, o-xylene, m-xylene and p-xylene are completely separated from the coexisting substances in the capillary chromatographic column, they are detected by hydrogen flame ionization. Measured by the internal standard method and quantified.
Gas chromatography test conditions:
a) Chromatographic column: polydimethylsiloxane capillary column, 60m×0.25mm inner diameter×1.4μm film thickness;
b) Inlet temperature: 235℃;
c) Column temperature: keep the initial temperature at 50℃ for 1 min, then increase at 8℃/min to 150℃ for 2 min, then increase at 20℃/min to
250℃, keep for 5 min;
d) Detector temperature: 260℃;
e) Carrier gas flow rate: 2.0mL/min
f) Split ratio: split injection, the split ratio is adjustable.
Determination of benzene, toluene, ethylbenzene and xylene in statio





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