Analysis of bacteria degradation products of methyl parathion by liquid chromatography/electrospray time-of-flight mass spectrometry and gas chromatography/mass spectrometry

doi:10.1016/j.chroma.2006.10.091

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	Analysis of bacteria degradation products of methyl parathion by liquid chromatography/electrospray time-of-flight mass spectrometry and gas chromatography/mass spectrometry
	Liu, Jie 1; Wang, Ling 2; Zheng, Li 3; Wang, Xiaoru 1,3; Lee, Frank S.C.3
刊名	JOURNAL OF CHROMATOGRAPHY A
	2006-12-29
卷号	1137 期号:2 页码:180-187
关键词	methyl parathion biodegradation bacteria ESI-TOFMS
ISSN号	0021-9673
DOI	10.1016/j.chroma.2006.10.091
英文摘要	The biodegradation of the organophosphorus insecticide methyl parathion (MP) in aqueous environment by bacteria isolated from river sediment has been studied. Two species of bacteria which show strong MP degradation ability are identified as Shewanella and Vibrio parahaemolyticus. The biodegradation of NIP proceeded rapidly with the formation of a series of intermediate products, which were analyzed using a combination of GC/MS and HPLC/ESI-TOFMS techniques. The major products tentatively identified include a series of reduced products of MP. Results demonstrate that the coupling of TOFMS to HPLC enhances further the capability of LC-MS in the identification of polar organic species in complex environmental samples. Degradation pathways leading to the formation of these products are proposed which involves first the reduction of nitro to amino group in MP, followed by combination with some intrinsic matters of bacteria. The mechanism and products from biodegradation are quite different from those of photocatalyfic process for which the main intermediates included methyl paraoxon and 4-nitrophenol. (c) 2006 Elsevier B.V All rights reserved.
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000243084200007
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/4617]
专题	业务部门_海洋生态研究中心
作者单位	1.Department of Chemistry, The Key Laboratory of Analytical Science of MOE, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; 2.College of Physical and Environmental Oceanography, Ocean University of China, Qingdao, 266003, China; 3.Key Lab on Analytical Technology Development and Standardization of Chinese Medicines, First Institute Oceanography, SOA, Qingdao, 266061, China
推荐引用方式 GB/T 7714	Liu, Jie,Wang, Ling,Zheng, Li,et al. Analysis of bacteria degradation products of methyl parathion by liquid chromatography/electrospray time-of-flight mass spectrometry and gas chromatography/mass spectrometry[J]. JOURNAL OF CHROMATOGRAPHY A,2006,1137(2):180-187.
APA	Liu, Jie,Wang, Ling,Zheng, Li,Wang, Xiaoru,&Lee, Frank S.C..(2006).Analysis of bacteria degradation products of methyl parathion by liquid chromatography/electrospray time-of-flight mass spectrometry and gas chromatography/mass spectrometry.JOURNAL OF CHROMATOGRAPHY A,1137(2),180-187.
MLA	Liu, Jie,et al."Analysis of bacteria degradation products of methyl parathion by liquid chromatography/electrospray time-of-flight mass spectrometry and gas chromatography/mass spectrometry".JOURNAL OF CHROMATOGRAPHY A 1137.2(2006):180-187.