电感耦合等离子体质谱在吸入性汞中毒死亡案件中的应用  

Application of ICP-MS into Testing the Death Case from Poisoning of Mercury Vapor

作　　者：黄健[1] 王爱华[1] 任昕昕[1] 魏春明[1] 崔冠峰[1] 董颖[1] 栾玉静[1] 杜鸿雁[1] 常靖[1] 王芳琳[1] HUANG Jian;WANG Aihua;REN Xinxin;WEI Chunming;CUI Guanfeng;DONG Ying;LUAN Yujing;DU Hongyan;CHANG Jing;WANG Fanglin(Institute of Forensic Science,Ministry of Public Security&Beijing Engineering Research Center of Crime Scene Evidence Examination,Beijing 100038,China)

机构地区：[1]公安部物证鉴定中心北京市现场物证检验工程技术中心

出　　处：《刑事技术》2020年第1期93-96,共4页Forensic Science and Technology

基　　金：中央级公益性科研院所基本科研业务费专项资金项目（2016JB020）

摘　　要：目的建立吸入性汞中毒死亡案件生物检材中汞元素的电离耦合等离子质谱检验方法。方法采用硝酸-过氧化氢体系对生物检材进行微波消解后,利用电感耦合等离子体质谱法进行汞元素含量分析。结果两起汞中毒死亡案件检材中汞元素含量均远远高于当地健康人群,这一结果为确定死亡原因提供了依据。结论微波消解法适用于案件中常见生物检材的前处理,消解后经电离耦合等离子质谱检验,汞元素含量检测结果准确可靠,所建立的方法适用于中毒案件中多种生物检材汞元素含量分析。Objective To establish an ICP-MS(inductively coupled plasma-mass spectrometry) method for determining the mercury in biological samples from the death cases of mercury-vapor poisoning. Methods The samples were digested under microwave through the formula of nitric acid and hydrogen peroxide, with the digested solution being analyzed of its mercury content by ICP-MS. Results Compared with the local healthy individuals, the victims were of much higher contents of mercury in their blood, leaving a strong clue for determining the cause of death. Conclusions Microwave digestion is suitable for preparation of various biological samples. The following analysis by ICP-MS after microwave digestion is accurate and reliable, too. Thus, the integration of microwave digestion and ICP-MS is capable for various biological samples of poisoning cases to be analyzed of the mercury(if any) content.

关 键 词：法医毒物分析 电感耦合等离子体质谱 汞元素 生物检材 微波消解 

分 类 号：DF795.1[医药卫生—法医学]