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Title: Application of static liquid-phase microextraction to the analysis of organochlorine pesticides in water
Authors: Zhao, L.
Lee, H.K. 
Keywords: Environmental analysis
Extraction methods
Liquid-phase microextraction
Water analysis
Issue Date: 15-Jun-2001
Source: Zhao, L., Lee, H.K. (2001-06-15). Application of static liquid-phase microextraction to the analysis of organochlorine pesticides in water. Journal of Chromatography A 919 (2) : 381-388. ScholarBank@NUS Repository.
Abstract: Static liquid-phase microextraction, with subsequent analysis by gas chromatography-electron-capture detection, has been applied to extract eight organochlorine pesticides from water. A conventional microsyringe was used to extract analytes from water samples over a concentration range of 0.05-100 μg/l. Factors relevant to the extraction process were investigated. The sensitivity of the method was enhanced with agitation, and increasing the extraction temperature, of the sample solution. Concentration factors of >50-fold were easily achieved within 25 min of extraction. The analytical data exhibited a relative standard deviation (RSD) range of 3.2% (lindane) to 10.7% (methoxychlor) for the eight pesticides; most RSD values were under 7%. Water samples collected from a reservoir, and from tap water in a chemical laboratory were analyzed using the procedure. © 2001 Elsevier Science B.V.
Source Title: Journal of Chromatography A
ISSN: 00219673
DOI: 10.1016/S0021-9673(01)00816-0
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