工作场所空气中丙烯的气相色谱测定方法研究(1)
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摘要： [目的] 建立工作场所空气中丙烯的气相色谱测定方法。 [方法] 活性炭吸附空气中丙烯，热解吸后采用气相色谱(FID)测定丙烯浓度。 [结果] 空气中丙烯的浓度在46～363 mg/m3时，相对标准偏差为1.1%～2.3%(n=6)；回归方程y=1 659+25 273 x，相关系数r=0.999 9；检出限为3.0×10-2 μg/ml(进样1 ml)；平均解吸效率为91.6%～93.9%；穿透容量(BTV)为2.6 mg；100 mg活性炭吸附274 μg的丙烯，密闭放置3 d，回收率89.8%；采样效率100%。 [结论] 本方法适用于工作场所空气中丙烯的浓度测定。
关键词： 丙烯；工作场所空气；炭管；热解吸；气相色谱
Research on the Method for Determination of Propylene in the Air of Workplace by Gas ChromatographyXU Jing，XU Yi-sheng，WU Yan(Shanghai Municipal Center for Disease Control and Prevention，Shanghai200336，China)
Abstract：[Objective] To establish GC analytical method for propylene in the air of workplace sampling by charcoal tube.[Methods] Charcoal adsorption and thermal desorption were used for the sampling of propylene and analysis was performed by GC(FID) ......
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