Development of Unidirectional Negative Corona Discharge Ion Mobility Spectrometer for Detection of Explosives

	Development of Unidirectional Negative Corona Discharge Ion Mobility Spectrometer for Detection of Explosives
	Sun Qi 1; Liu Ji-Wei 1; Peng Li-Ying 2,3; Huang Wei 2; Wang Wei-Guo 2; Jiang Dan-Dan 2,3; Li Hai-Yang 2
刊名	CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
	2016-08-01
卷号	44 期号:8 页码:1185-1192
关键词	Ion mobility spectrometry Explosives Ionization source Negative corona discharge Unidirectional mode
英文摘要	Ion mobility spectrometry (IMS) based explosives detectors is wieldy deployed at the check points of airport, etc, so the development of new ionization method to replace the radioactive Ni-63 ion source in IMS is highly demanded. In this study, a novel negative corona discharge was developed for ion mobility spectrometer for rapid detection of trace explosives, which was running in the unidirectional mode to efficiently remove nitrogen oxides and ozone produced from the discharge process. The diameter of target electrode was 3 mm, the distance between the needle and the target electrode was 2 mm, the discharge voltage was 2400 V and the flow rate of drift gas was 1200 mL/min. Under the optimized conditions, the dominant reactant ions was O-2(H2O)(n) and could be used to directly detect the common explosives, such as trinitrotoluene (TNT), ammonium nitrate (AN), nitroglycerin (NG), pentaerythritol tetranitrate (PETN) and hexahydro. 1,3,5-trinitro. 1,3,5-triazine (RDX). The limit of detection of TNT was 200 pg/mu L. These results indicated that negative corona discharge ionization source, with the advantanges of the high sensibility, simple structure and no radioactivity, could be used as a potential and promising ionization source for ion mobility spectrometry to detect explosives.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Analytical
关键词[WOS]	IONIZATION SOURCE ; SENSITIVE DETECTION ; MASS-SPECTROMETRY ; RAPID DETECTION ; MICROEXTRACTION ; WATER ; AIR
收录类别	SCI
语种	英语
WOS记录号	WOS:000389035300004
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/150352]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Liaoning Normal Univ, Fac Chem & Chem Engn, Inst Chem Functionalized Mat, Dalian 116029, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Sun Qi,Liu Ji-Wei,Peng Li-Ying,et al. Development of Unidirectional Negative Corona Discharge Ion Mobility Spectrometer for Detection of Explosives[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2016,44(8):1185-1192.
APA	Sun Qi.,Liu Ji-Wei.,Peng Li-Ying.,Huang Wei.,Wang Wei-Guo.,...&Li Hai-Yang.(2016).Development of Unidirectional Negative Corona Discharge Ion Mobility Spectrometer for Detection of Explosives.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,44(8),1185-1192.
MLA	Sun Qi,et al."Development of Unidirectional Negative Corona Discharge Ion Mobility Spectrometer for Detection of Explosives".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 44.8(2016):1185-1192.