DICP OpenIR
Subject Area物理化学
An in-source stretched membrane inlet for on-line analysis of VOCs in water with single photon ionization TOFMS
Hou, Keyong1; Li, Fanglong2; Chen, Wendong1,3; Chen, Ping1,3; Xie, Yuanyuan1,3; Zhao, Wuduo1,3; Hua, Lei1; Pei, Kemei2; Li, Haiyang1; Li HY(李海洋)
Source PublicationANALYST
2013
DOI10.1039/c3an00659j
Volume138Issue:19Pages:5826-5831
Indexed BySCI
Cooperation Status
SubtypeArticle
Department1
Funding Project102
Contribution Rank待补充
WOS HeadingsScience & Technology ; Physical Sciences
Funding Organization1,1 ; 1,1 ; 1,1 ; 1,1
WOS SubjectChemistry, Analytical
WOS Research AreaChemistry
WOS KeywordINTRODUCTION MASS-SPECTROMETRY ; VOLATILE ORGANIC-COMPOUNDS ; DESORPTION CHEMICAL-IONIZATION ; VACUUM-ULTRAVIOLET LAMP ; TRACE-LEVEL ANALYSIS ; INTERFACE ; AIR ; QUANTITATION ; MIMS ; MATRICES
AbstractAn in-source, stretched, hollow fiber membrane (HFM) inlet has been developed to improve the sensitivity of on-line time-of-flight mass spectrometry (TOFMS) with a vacuum ultraviolet (VUV) lamp based single photon ionization (SPI) source for the direct analysis of liquid samples. A 2-cm HFM was stretched to 8 cm in length, and placed in the ion source and directly under the VUV lamp window with a distance of 15 mm. Compared with the conventional flow-through configuration under the same experimental conditions, the signal intensities of selected volatile organic compounds (VOCs) of methyl tert-butyl ether (MTBE), ethyl tert-butyl ether (ETBE), benzene, toluene and p-xylene were increased over 5-fold in magnitude, and the response time was shortened to one-third. The limits of detection (LOD) of MTBE, ETBE, benzene, toluene and p-xylene ranged from 0.25 to 1.3 mu g L-1 with a measurement time of 60 s, and three orders of linear range were obtained with correlation coefficients of 0.9972-0.9992. The present results suggest that the in-source stretched HFM is a simple and effective way to increase the sensitivity and shorten response time of the membrane inlet, and we believe that it will also be beneficial to other types of on-line mass spectrometer for the on-line analysis of VOCs in water with a VUV lamp based SPI ion source.
Language英语
Funding Organization1,1 ; 1,1 ; 1,1 ; 1,1
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WOS IDWOS:000323722600041
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/119178
Collection中国科学院大连化学物理研究所
Corresponding AuthorLi HY(李海洋)
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Zhejiang Sci Tech Univ, Dept Chem, Hangzhou 310018, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Hou, Keyong,Li, Fanglong,Chen, Wendong,et al. An in-source stretched membrane inlet for on-line analysis of VOCs in water with single photon ionization TOFMS[J]. ANALYST,2013,138(19):5826-5831.
APA Hou, Keyong.,Li, Fanglong.,Chen, Wendong.,Chen, Ping.,Xie, Yuanyuan.,...&李海洋.(2013).An in-source stretched membrane inlet for on-line analysis of VOCs in water with single photon ionization TOFMS.ANALYST,138(19),5826-5831.
MLA Hou, Keyong,et al."An in-source stretched membrane inlet for on-line analysis of VOCs in water with single photon ionization TOFMS".ANALYST 138.19(2013):5826-5831.
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