Determination of Pesticides and Transformation Products in Environmental Water by using a Membrane Extraction Disk.
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概要
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A gas chromatography/mass spectrometric method was applied to determine 101 pesticides and 10 transformation products in environmental water by using a membrane extraction disk for solid-phase extraction. A filtered water sample of 500ml was passed through a membrane extraction disk SDB-XC. Pesticides extracted on the disk were eluted with 10ml of acetone, 10ml of ethyl acetate, and then 10ml of hexane. After the eluate was concentrated to 1ml, it was dried over anhydrous sodium sulfate. To the solution was added 100μg of PEG 200 and PEG 300 and 1μg of internal standards (1, 4-diiodobenzene and 9-bromoanthracene) for GC/MS determination. Overall recoveries were 70% to 108% except for 2, 6-dichlorobenzamide and thiometon from ground water and were 71% to 110% except for 2, 6-dichlorobenzamide from filtered river water.
- 日本環境化学会の論文
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