一起工作场所空气中1,2-二氯乙烷中毒应急检测分析

Emergency Determination of 1,2-Dichloroethane in the Air of Workplace

目的:介绍一起工作场所空气中1,2-二氯乙烷的检测,防止气相色谱法测定过程中的定性错误。方法:通过改变气相色谱仪的测定条件及用气质联用的方法,对样品进行再测定,达到准确定性的目的。结果:应用气相色谱法对1,2-二氯乙烷及乙酸丁酯进行测定,在保留时间上完成重叠,必须通过更换不同极性的柱子或气质联用仪的方法进行鉴定。结论:气相色谱仪在样品的定性上有一定的风险,宜通过不同的条件进行再测定,提高实验结果的准确性。

Objective： To introduce a determination of 1, 2 - Dichloroethane in the air of workplace so as to prevent qualitative misjudges during the determination by Gas Chromatography. Methods： By changing the determination conditions of the gas chromatography and applying GC - MS, the samples are redetermined to achieve exact qualitative determination. Results： Determining 1, 2 - Dichloroethane and Butylacetate by Gas Chromatography, the RT are overlapped completely, so we must exchange different pillars or determine by using GC - MS. Conclusions： There are risks in applying Gas Chromatography to the qualitative determination of the samples. In order to improve accuracy, redeterminations in different conditions are necessary.