丙酮-辅助光电离离子迁移谱检测TATP炸药的研究  

Sensitive Detection of Triacetone Triperoxide (TATP) by Acetone-Assisted Photoionization Ion Mobility Spectrometry

作　　者：温萌[1,2] 蒋蕾[3] 刘巍[1,2] 程沙沙[1,2] 王卫国[1] 陈创[1] 梁茜茜[1,2] 周庆华[1,2] 彭丽英[1,2] 李京华[1] 李海洋[1,3] 

机构地区：[1]中科院大连化学物理研究所,快速分离与检测实验室,辽宁大连116023 [2]中国科学院大学,北京100049 [3]吉林大学,仪器科学与电气工程学院,吉林长春130021

出　　处：《质谱学报》2014年第6期481-487,共7页Journal of Chinese Mass Spectrometry Society

基　　金：国家自然科学基金(21177124、21077101)资助

摘　　要：三过氧化三丙酮（TATP）是一种新型过氧化物炸药,由于制备原料易得、制备方法简单,常被恐怖分子用于恐怖袭击等犯罪活动中.本工作以25 mg/L丙酮作为掺杂剂,发展了一种基于丙酮-辅助光电离离子迁移谱检测TATP的方法.对电场强度和进样口温度等参数进行优化后,TATP的线性范围为5～100 ng,检测限可达1.2 ng.利用飞行时间质谱对反应试剂离子和产物离子进行分析,确定反应试剂离子主要是丙酮二聚体离子[（CH3）2CO]2 H＋,产物离子为TATP的碎片离子m/z 91[（CH3）2C（O）OO]H＋.实验结果表明,这种新型非放射性电离源离子迁移谱能够实现痕量TATP过氧化物爆炸物的高灵敏检测.Triacetone triperoxide （TATP） is a kind of peroxide-based explosive.Because of the preparation of easily obtained raw materials,simple preparation method,TATP was used by terrorists for terrorist attacks and criminal activites.In this study,an acetone-assisted photoionization ion mobility spectrometry （AAPI-IMS）was developed for sensitive detection of TATP with 25 mg/L acetone as the dopant.The parameters of AAPI-IMS were optimized with respect to electric field intensity and temperature of inlet.Under the optimal conditions,the linear range of 5-100 ng and the limit of detection of 1.2 ng were achieved for TATP.The reactant ions and product ions were identified to be （CH3COCH3）2H＋ and fragment ions of TATP m/z 91 [（CH3）2C（O）OO]H＋ with time-of-fight mass spectrometry （TOF MS）.The experimental results indicate AAPI-IMS can be used to detect trace TATP with high sensitivity.

关 键 词：三过氧化三丙酮(TATP) 丙酮-辅助光电离 掺杂剂 离子迁移谱 飞行时间质谱 

分 类 号：O657.63[理学—分析化学]