Portable solid phase micro-extraction coupled with ion mobility spectrometry system for on-site analysis of chemical warfare agents and simulants in water samples.
On-site analysis is an efficient approach to facilitate analysis at the location of the system under investigation as it can result in more accurate, more precise and quickly available analytical data. In our work, a novel self-made thermal desorption based interface was fabricated to couple solid-phase microextraction with ion mobility spectrometry for on-site water analysis. The portable interface can be connected with the front-end of an ion mobility spectrometer directly without other modifications. The analytical performance was evaluated via the extraction of chemical warfare agents and simulants in water samples. Several parameters including ionic strength and extraction time have been investigated in detail. The application of the developed method afforded satisfactory recoveries ranging from 72.9% to 114.4% when applied to the analysis of real water samples.
State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China. yangliujinjin@sina.com.
Liu
L
Yang
Beijing Key Laboratory for Microanalytical Methods and Instrumentation, Department of Chemistry, Tsinghua University, Beijing 100084, China. 545-rujia@163.com.
Qiang
Q
Han
State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China. 13910919731@139.com.
Shuya
S
Cao
State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China. yjdyb@163.com.
Jie
J
Yang
State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China. yjdyb@163.com.
Junchao
J
Yang
Beijing Key Laboratory for Microanalytical Methods and Instrumentation, Department of Chemistry, Tsinghua University, Beijing 100084, China. dingmy@mail.tsinghua.edu.cn.
Mingyu
M
Ding