离子迁移谱检测痕量爆炸物新技术和应用

Development of ion mobility spectrometry and its application for detection trace explosives

离子迁移谱具有分析速度快、灵敏度高、便携、操作简便等优点,成为爆炸物检测的主要方法之一,被广泛应用于机场安检和反恐等领域.本文简要介绍了离子迁移谱的原理、分类及特点;重点介绍了本课题组近期在离子迁移谱新技术及其在爆炸物检测中应用的新进展,包括新型滴定结构离子迁移谱研发、提高离子迁移谱分辨率方法、基于VUV灯的高效非放射性电离源研制等;最后,对离子迁移谱在爆炸物检测方面发展方向和前景进行了预测.

Ion mobility spectrometry is widely used for detection of explosives in the field of airport and in the war against terror due to its satisfactory features： fast response, high sensitivity, good portability, easy operation, etc. This paper introduced the pricinple, classification and also their features of ion mobility sepctrometry; also mainly introduced recent developments of technique for detection of explosives in our laboratory including titration region-ion mobility spectrometry, new method to improve the resolution of ion mobility spectrometry and also the nonradioactive high-efficency ionization source based on VUV lamp. Finally, the development tendency and prospect of ion mobility spectrometry for detection of explosives was predicted.