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2006•Journal of environmental healthRequires access

Determination of Chlorpyrifos in Water by Gas Chromatography

Mingli Chen

Open publisher page 2 citations

Abstract

Objective To develop a gas chromatography method to determine chlorpyrifos in water. Methods Chlorpyrifos was determined by GC-FPD after extraction by dichloromethane. Qualitative analysis was done by retention time and quantitative analysis by external standard curve. Results The linear range of the method was 0.20-15.00 mg/L, the correlation coefficient was 0.999 9, the rates of recovery were 94.1%-101.9%, the relative standard deviations were 3.7%-7.3%.The detection limit was 0.3 μg/L. Conclusion This method is sensitive, accurate, able to eliminate the interferences and suitable for determination of trace chlorpyrifos in water.

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What this paper is about

Objective To develop a gas chromatography method to determine chlorpyrifos in water. Methods Chlorpyrifos was determined by GC-FPD after extraction by dichloromethane. Qualitative analysis was done by retention time and quantitative analysis by external standard curve. Results The linear range of the method was 0.20-15.00 mg/L, the correlation coefficient was 0.999 9, the rates of recovery were 94.1%-101.9%, the relative standard deviations were 3.7%-7.3%.The detection limit was 0.3 μg/L. Conclusion This method is sensitive, accurate, able to eliminate the interferences and suitable for determination of trace chlorpyrifos in water.

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Available abstract

Objective To develop a gas chromatography method to determine chlorpyrifos in water. Methods Chlorpyrifos was determined by GC-FPD after extraction by dichloromethane. Qualitative analysis was done by retention time and quantitative analysis by external standard curve. Results The linear range of the method was 0.20-15.00 mg/L, the correlation coefficient was 0.999 9, the rates of recovery were 94.1%-101.9%, the relative standard deviations were 3.7%-7.3%.The detection limit was 0.3 μg/L. Conclusion This method is sensitive, accurate, able to eliminate the interferences and suitable for determination of trace chlorpyrifos in water.

Key concepts: Chlorpyrifos, Chromatography, Detection limit, Gas chromatography, Dichloromethane, Correlation coefficient, Chemistry, Linear correlation

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