Detection of Chemical Warfare Agents by Differential Mobility Spectrometry and Drift-time Ion Mobility Spectrometry Hybrid Technology
10.11895/j.issn.0253-3820.140325
- VernacularTitle:差分离子迁移谱和迁移时间离子迁移谱联用技术检测化学战剂模拟物
- Author:
Shasha CHENG
;
Chuang CHEN
;
Weiguo WANG
;
Haiyang LI
- Publication Type:Journal Article
- Keywords:
Differential mobility spectrometry;
Drift-time ion mobility spectrometry;
Hybrid technology;
Chemical warfare agents stimulants
- From:
Chinese Journal of Analytical Chemistry
2014;(9):1264-1269
- CountryChina
- Language:Chinese
-
Abstract:
Using a novel hybrid technology combined differential ion mobility spectrometry ( DMS) with drift time ion mobility spectrometry DMS-IMS2 , we detected the typical chemical warfare agent simulants dimethyl methylphosphonate ( DMMP ) and methyl salicylate ( MS) . With carrier gas 800 mL/min and DMS RF voltage 1100 V, the chemical warfare agents DMMP and MS could be detected and characterized by DMS-IMS2 under DIMS mode. In addition, DMS-IMS2 is capable to monitor positive and negative ions of DMMP and MS simultaneously, and provides the two-dimensional separation parameters DMS compensation voltage ( CV) and IMS drift time ( Td ) , which provides more information for the identification of two chemical warfare agents. DMS-IMS2 has potential application in on-site detection and instrument miniaturization due to its advantages including small size, low power consumption and rapid response time.
