摘要
介绍了改进检测PVC树脂中残留氯乙烯及1,1-二氯乙烷的方法。采用固上顶空法、GDX301（180~250μm）填充柱（内径2 mm、柱长1 m）分离氯乙烯及1,1-二氯乙烷效果好,峰形好,加入的标准样品回收率：氯乙烯为89.4%~104.0%、1,1-二氯乙烷为102.4%~110.0%;相对标准偏差：氯乙烯0.51%、1,1-二氯乙烷1.11%;氯乙烯与1,1-二氯乙烷检测限分别为0.02、0.1μg/g。该方法操作简便、耗时少,色谱分离结果能满足检测要求,标准曲线线性好,准确度、精密度能满足分析检测的要求。
Improvements on the method for the determination of residual vinyl chloride and 1, 1 - dichloroethane in PVC resins were introduced. Good separation effccts were obtaincd by adop, ting empty headspace method,GDX301 （180~ 250 μm） chromatographic pillar with inner diameter 2 mm and length 1 m. The peak form was good. The recovery of standard sample added were 89.4% ~ 104.0% for vinyl chloride and 102.4% ~ 110.0% for 1,1 - dichloroethane, the relative standard deviation were 0.51% for vinyl chloride and 1.11% for 1,1 - dichloroethane,and the limits of detection were 0.02 μg/g for vinyl chloride and 0.1 μg/g for 1,1 - dichloroethane. This method was simple to operate, needed less time, gave good chromatography separation effccts and nearly linear standard curve,and the accuracy and precision met the requirement of analysis and determination.
出处
《聚氯乙烯》
CAS
2007年第9期30-33,共4页
Polyvinyl Chloride
作者简介
黄彬（1968-），女，工程师，1989年毕业于自贡师范高等专科学校化学专业，现从事检测工作。
