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学科主题物理化学
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)
刊名ANALYST
2013
DOI10.1039/c3an00659j
138期:19页:5826-5831
收录类别SCI
合作性质
文章类型Article
部门归属1
项目归属102
产权排名待补充
WOS标题词Science & Technology ; Physical Sciences
资助者1,1 ; 1,1 ; 1,1 ; 1,1
类目[WOS]Chemistry, Analytical
研究领域[WOS]Chemistry
关键词[WOS]INTRODUCTION MASS-SPECTROMETRY ; VOLATILE ORGANIC-COMPOUNDS ; DESORPTION CHEMICAL-IONIZATION ; VACUUM-ULTRAVIOLET LAMP ; TRACE-LEVEL ANALYSIS ; INTERFACE ; AIR ; QUANTITATION ; MIMS ; MATRICES
英文摘要An 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.
语种英语
资助者1,1 ; 1,1 ; 1,1 ; 1,1
原文出处查看原文
WOS记录号WOS:000323722600041
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/119178
专题中国科学院大连化学物理研究所
通讯作者Li HY(李海洋)
作者单位1.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
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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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