电感耦合等离子体质谱技术在法庭科学中的研究和应用进展  

Progress in Research and Application of Inductively Coupled Plasma-Mass Spectrometry in Forensic Science

作　　者：李秀云 李文海[1] 木台力甫 孙红雷[1] 夏庆兵 邵凯[1] LI Xiu-yun;LI Wen-hai;MU Tai-lifu;SUN Hong-lei;XIA Qing-bing;SHAO Kai(Taian Criminal Investigation Detachment,Public Security Bureau,Taian 271000,Shandong China;Kashi Criminal Investigation Detachment,Public Security Bureau,Kashen 844000,Xinjiang China)

机构地区：[1]山东省泰安市公安局刑侦支队,山东泰安271000 [2]喀什地区公安处刑侦支队,新疆喀什844000

出　　处：《分析测试技术与仪器》2019年第4期260-266,共7页Analysis and Testing Technology and Instruments

摘　　要：电感耦合等离子体质谱法(inductively coupled plasma-mass spectrometry,ICP-MS)具有灵敏度高、干扰少、选择性好、适合进行超痕量多元素同时分析和同位素比值的测定等优点,在法庭科学中得到了广泛应用.综合归纳了ICP-MS技术在重金属及有害元素投(中)毒案件、食品药品环境分析、交通肇事及涉枪等案(事)件中重金属及微量元素分析中的应用.介绍了不同检材的样品前处理方法以及如何减少基体干扰,并且综述了优化ICP-MS仪器参数和碰撞反应池技术以消除质谱干扰,展望了ICP-MS在法庭科学中的应用.Owing to the advantages of inductively coupled plasma-mass spectrometry(ICP-MS),such as high sensitivity,less interference,good selectivity,suitable for simultaneous analysis of ultra-trace elements and determination of isotopic ratio,it is widely used in forensic science.The ICP-MS technology was used in heavy metal and harmful elements(medium)toxicity cases,food and drug environment analysis,traffic accidents and gun-related cases,and the analyses of heavy metals and trace elements.The method of sample pretreatment and the reduction of matrix interference were introduced,and the optimization of ICP-MS instrument parameters and collision reaction pool technology to eliminate mass spectrum interference was summarized with prospect of the application of ICP-MS in forensic science.

关 键 词：电感耦合等离子体质谱 法庭科学 微量物证 重金属 超痕量分析 

分 类 号：O657.63[理学—分析化学]