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Determination of residual amount of 3 kinds of oranophorus pesticides in vegetable by high performance liquid chromatography

Zhuling Chen

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Abstract

Residues of three organophosphorous pesticides parathionmethy, parathionethyl and phorate in vegetables were analyzed and separated by high performance liquid chromatography. The analysis conditions were optimized for the extraction, purification and separation of samples. Separation was performed in shim-pack VP-ODS column with an eluent consisting of methanol-water (volume ratio (85∶15)) mixture. The eluate was detected by UV detector at 250?nm. The experimental data had a good characteristic of linearity in the range of 0.02-2.0?μg/L with the detecting limit 1.0-5.0?μg/L, the recovery ration ranged from 97.44% to 101.22%. The method could be used to analyse pesticide in different vegetables.

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What this paper is about

Residues of three organophosphorous pesticides parathionmethy, parathionethyl and phorate in vegetables were analyzed and separated by high performance liquid chromatography. The analysis conditions were optimized for the extraction, purification and separation of samples. Separation was performed in shim-pack VP-ODS column with an eluent consisting of methanol-water (volume ratio (85∶15)) mixture. The eluate was detected by UV detector at 250?nm. The experimental data had a good characteristic of linearity in the range of 0.02-2.0?μg/L with the detecting limit 1.0-5.0?μg/L, the recovery ration ranged from 97.44% to 101.22%. The method could be used to analyse pesticide in different vegetables.

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Available abstract

Residues of three organophosphorous pesticides parathionmethy, parathionethyl and phorate in vegetables were analyzed and separated by high performance liquid chromatography. The analysis conditions were optimized for the extraction, purification and separation of samples. Separation was performed in shim-pack VP-ODS column with an eluent consisting of methanol-water (volume ratio (85∶15)) mixture. The eluate was detected by UV detector at 250?nm. The experimental data had a good characteristic of linearity in the range of 0.02-2.0?μg/L with the detecting limit 1.0-5.0?μg/L, the recovery ration ranged from 97.44% to 101.22%. The method could be used to analyse pesticide in different vegetables.

Key concepts: Chromatography, Chemistry, Phorate, Elution, Detection limit, Column chromatography, Extraction (chemistry), Pesticide

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Determination of residual amount of 3 kinds of oranophorus pesticides in vegetable by high performance liquid chromatography — Research Paper | ScholarLens