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Membrane-Extraction Ion Mobility Spectrometry for in Situ Detection of Chlorinated Hydrocarbons in Water
Du, Yongzhai1; Zhang, Wei1; Whitten, William1; Li, Haiyang2; Watson, David B.1; Xu, Jun1
刊名ANALYTICAL CHEMISTRY
2010-05-15
DOI10.1021/ac100162d
82期:10页:4089-4096
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Analytical
研究领域[WOS]Chemistry
关键词[WOS]VOLATILE ORGANIC-COMPOUNDS ; MASS-SPECTROMETER ; AQUEOUS-SOLUTIONS ; PERVAPORATION ; AIR ; IONIZATION ; SEPARATION
英文摘要Membrane-extraction ion mobility spectrometry (ME-IMS) has been developed for in situ sampling and analysis of trace chlorinated hydrocarbons in water in a single procedure. The sampling is configured so that aqueous contaminants permeate through a spiral hollow poly(dimethylsiloxane) (PDMS) membrane and are carried away by a vapor flow through the membrane tube. The extracted analyte flows into an atmospheric-pressure chemical-ionization (APCI) chamber and is analyzed in a specially made IMS analyzer. The PDMS membrane was found to effectively extract chlorinated hydrocarbon solvents from the liquid phase to vapor. The specialized IMS analyzer has measured resolutions of R = 33 and 41, respectively, for negative- and positive-modes and is capable of detecting aqueous tetrachloroethylene (PCE) and trichloroethylene (ICE) as low as 80 and 74 mu g/L in the negative ion mode, respectively. The time-dependent characteristics of sampling and detection of ICE are both experimentally and theoretically studied for various concentrations, membrane lengths, and flow rates. These characteristics demonstrate that membrane-extraction IMS is feasible for the continuous monitoring of chlorinated hydrocarbons in water.
语种英语
WOS记录号WOS:000277531500018
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/141899
专题中国科学院大连化学物理研究所
作者单位1.Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
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GB/T 7714
Du, Yongzhai,Zhang, Wei,Whitten, William,et al. Membrane-Extraction Ion Mobility Spectrometry for in Situ Detection of Chlorinated Hydrocarbons in Water[J]. ANALYTICAL CHEMISTRY,2010,82(10):4089-4096.
APA Du, Yongzhai,Zhang, Wei,Whitten, William,Li, Haiyang,Watson, David B.,&Xu, Jun.(2010).Membrane-Extraction Ion Mobility Spectrometry for in Situ Detection of Chlorinated Hydrocarbons in Water.ANALYTICAL CHEMISTRY,82(10),4089-4096.
MLA Du, Yongzhai,et al."Membrane-Extraction Ion Mobility Spectrometry for in Situ Detection of Chlorinated Hydrocarbons in Water".ANALYTICAL CHEMISTRY 82.10(2010):4089-4096.
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