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

	Analysis of bacteria degradation products of methyl parathion by liquid chromatography/electrospray time-of-flight mass spectrometry and gas chromatography/mass spectrometry
	Liu, Jie ; Wang, Ling ; Zheng, Li ; Wang, Xiaru ; Lee, Frank S. C.
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关键词	ORGANOPHOSPHORUS PESTICIDES ; ACETYLCHOLINESTERASE ; BIODEGRADATION ; SHEWANELLA ; REDUCTION ; HYDROLASE ; CR(VI)
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:8080/handle/2SI8HI0U/26324]
专题	自然资源部第一海洋研究所
通讯作者	Lee, Frank S. C.
作者单位	1.SOA, Inst Oceanog 1, Key Lab Analyt Technol Dev & Standardizat Chinese, Qingdao 266061, Peoples R China 2.Ocean Univ China, Coll Phys & Environm Oceanog, Qingdao 266003, Peoples R China 3.Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, Xiamen 361005, Peoples R China 4.Xiamen Univ, Coll Chem & Chem Engn, Key Lab Analyt Sci MOE, Xiamen 361005, Peoples R 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, Xiaru,&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.