固相微萃取(SPME)GC/MS、GC/MS/MS法检测环境水中的有机磷杀虫剂  

Determination of organophosphate insecticides in enviromental water by auto-SPME,GC/MS and GC/MS/MS

作　　者：魏立青[1] 郭杰[1] 蒋华宇 种法运[1] 

机构地区：[1]山东省青岛市公安局刑警支队技术处,266001

出　　处：《刑事技术》2004年第5期31-35,共5页Forensic Science and Technology

摘　　要：目的　通过对固相微萃取 (SPME)条件的优化、筛选实验 ,建立环境水中有机磷杀虫剂的快速检验方法。方法　收集 17种有机磷杀虫剂 ,使用SPME并结合GC/MS、GC/MS/MS检验方法。结果　该方法简便、灵敏、迅速、可靠 ,样品利用率高 ,最低检测浓度为 0 .0 1～ 10 0 pg/ml,在痕量范围 0 .1～ 10ng/ml内线性回归好(相关系数r达 0 .99以上 )。结论　实际应用效果理想 ,有望成为公安、环保、检验检疫的农残及毒物分析中的一种快速有效的分析方法。Objective To present a rapid analysis method of organophosphate insecticides in enviromental water.Method Organophosphate insecticides (including seventeen compounds) in enviromental water were analyzed by auto-SPME and GC/MS,GC/MS/MS,fused-silica fiber with 100μm polydimethylsiloxane (PDMS) was used and extraction time was from 15min to 20min, the thermal desorption time was 3min. Results The linear range of the detection was 0.1～10ng/ml(r≥0.99).The lowest detection limits (LODs)were 0.01～100pg/ml. Conclusion It is a rapid and efficient method in some fields,e.g.enviromental protection,inspection and quarantine,forensic toxicology,etc.

关 键 词：GC/MS/MS法 快速检验 有机磷杀虫剂 验方 SPME 灵敏 检测浓度 毒物分析 公安 范围 

分 类 号：D919[医药卫生—法医学] R123.1[政治法律—法学]