Sensitive Detection of Black Powder by a Stand-Alone Ion Mobility Spectrometer with an Embedded Titration Region

	Sensitive Detection of Black Powder by a Stand-Alone Ion Mobility Spectrometer with an Embedded Titration Region
	Liang, Xixi 1,2; Zhou, Qinghua 1,2; Wang, Weiguo 1; Wang, Xin 1; Chen, Wendong 1,2; Chen, Chuang 1,2; Li, Yang 1; Hou, Keyong 1; Li, Jinghua 1; Li, Haiyang 1
刊名	analytical chemistry
	2013-05-21
卷号	85 期号:10 页码:4849-4852
通讯作者	李海洋
产权排序	待补充
合作状况	英
英文摘要	sensitive detection of black powder (bp) by stand-alone ion mobility spectrometry (ims) is full of challenges. in conventional air-based ims, overlap between the reactant ion o-2(-)(h2o)(n) peak and the sulfur ion peak occurs severely; and common doping methods, providing alternative reactant ion cl-(h2o)(n), would hinder the formation of ionic sulfur allotropes. in this work, an ion mobility spectrometer embedded with a titration region (tr-ims) downstream from the ionization region was developed for selective and sensitive detection of sulfur in bp with ch2cl2 as the titration reagent. sulfur. ions were produced via reactions between sulfur molecules and o-2(-)(h2o)(n) ions in the ionization region, and the remaining o-2(-)(h2o)(n) ions that entered the titration region were converted to cl-(h2o)(n) ions, which avoided the peak overlap as well as the negative effect of ch2cl2 on sulfur ions. the limit of detection for sulfur was measured to be 5 pg. furthermore, it was demonstrated that this tr-ims was qualified for detecting less than 5 ng of bp and other nitro-organic explosives.
学科主题	物理化学
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, analytical
研究领域[WOS]	chemistry
关键词[WOS]	explosive trace detector ; mass-spectrometer ; sulfur
收录类别	SCI
资助信息	1，1
原文出处	4852
语种	英语
WOS记录号	WOS:000319651100004
公开日期	2014-09-11
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/119305]
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.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Liang, Xixi,Zhou, Qinghua,Wang, Weiguo,et al. Sensitive Detection of Black Powder by a Stand-Alone Ion Mobility Spectrometer with an Embedded Titration Region[J]. analytical chemistry,2013,85(10):4849-4852.
APA	Liang, Xixi.,Zhou, Qinghua.,Wang, Weiguo.,Wang, Xin.,Chen, Wendong.,...&Li, Haiyang.(2013).Sensitive Detection of Black Powder by a Stand-Alone Ion Mobility Spectrometer with an Embedded Titration Region.analytical chemistry,85(10),4849-4852.
MLA	Liang, Xixi,et al."Sensitive Detection of Black Powder by a Stand-Alone Ion Mobility Spectrometer with an Embedded Titration Region".analytical chemistry 85.10(2013):4849-4852.