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	Determination of organophosphate pesticide residues by cloud point extraction
	Ding Yuwen ; Qin Wei ; Dai Youyuan
	2010-10-12 ; 2010-10-12
关键词	Experimental/ chemical engineering chromatography surfactants/ organophosphate pesticide residues determination polyoxyethylene laurylether cloud point extraction process nononic surfactant high performance liquid chromatography method detect limit parathion-methyl phoxime/ E3626 Chemical industry E1525 Industrial processes E1710 Engineering materials
中文摘要	A cloud point extraction process (CPE) utilizing polyoxyethylene 10 laurylether (C/sub 12/E/sub 10/) was developed to enrich the trace organophosphate pesticide in aqueous solution, including parathion-methyl and phoxime for rapid determination of pesticide residues. The effects of the concentrations of nononic surfactant, sodiumsulfate, and organophosphate pesticide as well as the impurity on the CPE behavior were investigated. As the result reveals, CPE is a good technology with a high enrichment times on parathion-methyl and phoxime,which reaches 95 and 97 at most, respectively, and the extraction yield can exceed 90% , when using 5 g ldr L/sup -1/ C/sub 12/E/sub 10/ and 120 g ldr L/sup -1/ Na/sub 2/SO/sub 4/ at 35 degrees C. Combining cloud point extraction with high performance liquid chromatography, the method detect limit (MDL) of parathion-methyl and phoxime can reach 1 mu g ldr L/sup -1/.
语种	中文
出版者	Tsinghua University Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/79534]
专题	清华大学
推荐引用方式 GB/T 7714	Ding Yuwen,Qin Wei,Dai Youyuan. Determination of organophosphate pesticide residues by cloud point extraction[J],2010, 2010.
APA	Ding Yuwen,Qin Wei,&Dai Youyuan.(2010).Determination of organophosphate pesticide residues by cloud point extraction..
MLA	Ding Yuwen,et al."Determination of organophosphate pesticide residues by cloud point extraction".(2010).

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