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Development of Unidirectional Negative Corona Discharge Ion Mobility Spectrometer for Detection of Explosives
Liu Ji-Wei1; Peng Li-Ying2,3; Huang Wei2; Wang Wei-Guo2; Jiang Dan-Dan2,3; Sun Qi1; Li Hai-Yang2
KeywordIon Mobility Spectrometry Explosives Ionization Source Negative Corona Discharge Unidirectional Mode
Source PublicationCHINESE JOURNAL OF ANALYTICAL CHEMISTRY
2016-08-01
DOI10.11895/j.issn.0253.3820.160038
Volume44Issue:8Pages:1185-1192
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Analytical
WOS KeywordIONIZATION SOURCE ; SENSITIVE DETECTION ; MASS-SPECTROMETRY ; RAPID DETECTION ; MICROEXTRACTION ; WATER ; AIR
AbstractIon 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.
Language英语
WOS IDWOS:000389035300004
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/150352
Collection中国科学院大连化学物理研究所
Affiliation1.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
Recommended Citation
GB/T 7714
Liu Ji-Wei,Peng Li-Ying,Huang Wei,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 Liu Ji-Wei.,Peng Li-Ying.,Huang Wei.,Wang Wei-Guo.,Jiang Dan-Dan.,...&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 Liu Ji-Wei,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.
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