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题名: Rapid Analysis of Three Kinds of Pesticide Residues by Non-contact Thermal Desorbing and Closing Low Temperature Plasma Ionization Mass Spectrometry
作者: Su Ming-Yang1;  Hou Ke-Yong2;  Huang Ze-Jian3;  Jiang You3;  Chen Wen-Dong2, 4;  Chen Ping2, 4;  Jiang Ji-Chun2, 4;  Zhao Wu-Duo2, 4;  Pei Ke-Mei1;  Li Hai-Yang2
关键词: Low-temperature plasma ;  Pesticide residue ;  Miniature ion trap mass spectrometry
刊名: CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
发表日期: 2014-03-01
DOI: 10.3724/SP.J.1096.2014.30891
卷: 42, 期:3, 页:384-389
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
英文摘要: A new method was established for the direct, rapid and quantitative analysis of pesticide residues, dimethoate chlorothalonil and malathion by low temperature plasma (LTP) ionization miniature ion trap mass spectrometer. The LTP ionization probe and sample inlet of ion trap mass spectrometry were enclosed in a metal cavity. With non-contact heating, the samples placed on the sample platform were desorbed into gaseous phase and ionized by LTP ionization probe. The results showed that closed ionization had an edge over the opened ionization. The quantitative analysis of 3 pesticides within the range of 0.5-10 mg/L was realized by optimizing heating time and flow rate of air, and the relative standard deviations of signal intensity is less than 11%. LODs of pesticide, which were obtained within 5 s, were as low as several hundred pictograms. The results showed that the method could be used for the analysis of pesticide residue on green and organic fruits or vegetables.
关键词[WOS]: DESORPTION ELECTROSPRAY-IONIZATION ;  PERFORMANCE LIQUID-CHROMATOGRAPHY ;  AMBIENT CONDITIONS ;  ION-SOURCE ;  SAMPLES
语种: 英语
WOS记录号: WOS:000338427000004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145793
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Zhejiang Sci Tech Univ, Dept Chem, Hangzhou 310018, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Natl Inst Metrol, Beijing 100013, Peoples R China
4.Chinese Acad Sci, Grad Sch, Beijing 10039, Peoples R China

Recommended Citation:
Su Ming-Yang,Hou Ke-Yong,Huang Ze-Jian,et al. Rapid Analysis of Three Kinds of Pesticide Residues by Non-contact Thermal Desorbing and Closing Low Temperature Plasma Ionization Mass Spectrometry[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2014,42(3):384-389.
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