活性炭管吸附气相色谱法测定工作场所中环氧丙烷、环氧氯丙烷

那晶晶1; 2; 余秀娟1; 2; 曾钰1; 2

引用本文:	NA Jing jing1,2，YU Xiu juan1,2，ZENG Yu1,2.Determination of Epoxypropane and Epichlorohydrin by GC Combined with Activated Carbon Tube Adsorption[J].Environmental Monitoring and Forewarning,2015,7(1):15~17

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活性炭管吸附气相色谱法测定工作场所中环氧丙烷、环氧氯丙烷
那晶晶1,2，余秀娟1,2，曾钰1,2^1,2
1.苏州出入境检验检疫局综合技术中心，江苏苏州 215000;2.苏州世标检测技术有限公司，江苏苏州 215000

摘要:

建立了一种利用活性炭管采样，二硫化碳洗脱，DB-624UI气相色谱柱（30 m×0.25 mm×1.4 μm）进行分离，FID检测器检测的测定环氧丙烷和环氧氯丙烷的气相色谱方法。结果显示，环氧丙烷和环氧氯丙烷在0.5~50 mg/L范围内线性关系良好，方法检出限达到了0.026 mg/m3和0.048 mg/m3（以采集4.5 L空气样品计）；环氧丙烷平均解析效率84.84%（RSD=1.770），环氧氯丙烷平均解析效率92.07%（RSD=2.270），适用于工作场所中环氧丙烷和环氧氯丙烷的同时测定。

关键词: 环氧丙烷环氧氯丙烷活性炭管解析

DOI：

分类号:X851

基金项目:

Determination of Epoxypropane and Epichlorohydrin by GC Combined with Activated Carbon Tube Adsorption

NA Jing jing1,2，YU Xiu juan1,2，ZENG Yu1,2^1,2

1.Suzhou Entry Exit Inspection and Quarantine Bureau,Suzhou, Jiangsu 215000, China;2.Suzhou World Standard Testing Technology Co.Ltd.,Suzhou, Jiangsu 215000, China

Abstract:

An efficient and rapid method for analysing epoxypropane and epichlorohydrin was set up.The sample was absorbed by carbon tube, eluted by CS2, separated by the capillary column DB 624UI：30m×0.25mm×1.4μm, then detected by FID detector. Results showed that epoxypropane and epichlorohydrin had good linear relationship in the range of 0.5~50 mg/L. The detection limits were 0.026 mg/m3 and 0.048 mg/m3. The average elution efficiency of epoxypropane was 84.84% (RSD=1.770) and epichlorohydrin was 92.07% (RSD=2.270). This method can be applied to determine of epoxypropane and epichlorohydrin in work place,simultaneously.

Key words: Epoxypropane Epichlorohydrin Carbon tube Solvent elution