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Determination of 16 Kinds of Organochlorine Pesticides in Water by GC/MS with Solid-phase Extraction

Teng En-jiang

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Abstract

A new method was established for determination of 16 kinds of organochlorine pesticides in water by gas chromatography and mass spectrometry with solid-phase extraction.The organochlorine pesticides were extracted from water with HLB SPE cartridge,eluted with ethyl acetate,detected by selected ion monitoring mode and phenanthrene-d10 as internal standard.By optimizing condition of solid-phase extraction,the results showed good linearity for 16 kinds of organochlorine pesticides ranging from 5.00 μg/L to 250 μg/L;method detection limits between 1.4 ng/L and 19.4 ng/L(1 L sample);RSD between 3.5% and 20.0%;and average spiked recoveries between 44.7% and 119%.

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What this paper is about

A new method was established for determination of 16 kinds of organochlorine pesticides in water by gas chromatography and mass spectrometry with solid-phase extraction.The organochlorine pesticides were extracted from water with HLB SPE cartridge,eluted with ethyl acetate,detected by selected ion monitoring mode and phenanthrene-d10 as internal standard.By optimizing condition of solid-phase extraction,the results showed good linearity for 16 kinds of organochlorine pesticides ranging from 5.00 μg/L to 250 μg/L;method detection limits between 1.4 ng/L and 19.4 ng/L(1 L sample);RSD between 3.5% and 20.0%;and average spiked recoveries between 44.7% and 119%.

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Available abstract

A new method was established for determination of 16 kinds of organochlorine pesticides in water by gas chromatography and mass spectrometry with solid-phase extraction.The organochlorine pesticides were extracted from water with HLB SPE cartridge,eluted with ethyl acetate,detected by selected ion monitoring mode and phenanthrene-d10 as internal standard.By optimizing condition of solid-phase extraction,the results showed good linearity for 16 kinds of organochlorine pesticides ranging from 5.00 μg/L to 250 μg/L;method detection limits between 1.4 ng/L and 19.4 ng/L(1 L sample);RSD between 3.5% and 20.0%;and average spiked recoveries between 44.7% and 119%.

Key concepts: Solid phase extraction, Chromatography, Chemistry, Selected ion monitoring, Extraction (chemistry), Elution, Pesticide, Gas chromatography–mass spectrometry

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