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Gas-liquid chromatographic determination of organophosphorus insecticide residues in fruits and vegetables.
J Assoc Off Anal Chem. 1980 May; 63(3):517-22.JA

Abstract

A method intended for regulatory purposes is described for the determination of organophosphorus insecticide residues in fruits and vegetables. Eighteen organophosphorus insecticides, azinphos-ethyl, chlorpyrifos, diazinon, dichlorvos, dimethoate, ethion, ethoate-methyl, fenitrothion, fenthion, formothion, malathion, methidathion, mevinphos, parathion, phosalone, phosphamidon, thiometon, and trichlorphon, and 7 metabolites, fenitrooxon, fenthion sulfoxide, fenthion sulfone, malaoxon, desethylphosphamidon, thiometon sulfoxide, and thiometon sulfone, were extracted from different crops with acetone and partitioned into hexane or ethyl acetate, according to their polarities. The hexane extract was cleaned up by eluting from a Florisil column with acetone-hexane (4+96). The ethyl acetate extract needs no cleanup. The concentrated extracts were analyzed by gas-liquid chromatography using thermionic detectors. Recoveries conducted at fortification levels ranging from 0.1 to 2 mg/kg were in most cases above 80%. The limit of sensitivity is less than 0.1 mg/kg.

Authors

Ferreira JR
No affiliation info available
Silva Fernandes AM
No affiliation info available

MeSH

Chromatography, GasFood ContaminationFruitInsecticidesOrganophosphorus CompoundsPesticide ResiduesVegetables

Pub Type(s)

Journal Article

Language

eng

PubMed ID

7430038

Citation

Ferreira, J R., and A M. Silva Fernandes. "Gas-liquid Chromatographic Determination of Organophosphorus Insecticide Residues in Fruits and Vegetables." Journal - Association of Official Analytical Chemists, vol. 63, no. 3, 1980, pp. 517-22.
Ferreira JR, Silva Fernandes AM. Gas-liquid chromatographic determination of organophosphorus insecticide residues in fruits and vegetables. J Assoc Off Anal Chem. 1980;63(3):517-22.
Ferreira, J. R., & Silva Fernandes, A. M. (1980). Gas-liquid chromatographic determination of organophosphorus insecticide residues in fruits and vegetables. Journal - Association of Official Analytical Chemists, 63(3), 517-22.
Ferreira JR, Silva Fernandes AM. Gas-liquid Chromatographic Determination of Organophosphorus Insecticide Residues in Fruits and Vegetables. J Assoc Off Anal Chem. 1980;63(3):517-22. PubMed PMID: 7430038.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Gas-liquid chromatographic determination of organophosphorus insecticide residues in fruits and vegetables. AU - Ferreira,J R, AU - Silva Fernandes,A M, PY - 1980/5/1/pubmed PY - 1980/5/1/medline PY - 1980/5/1/entrez SP - 517 EP - 22 JF - Journal - Association of Official Analytical Chemists JO - J Assoc Off Anal Chem VL - 63 IS - 3 N2 - A method intended for regulatory purposes is described for the determination of organophosphorus insecticide residues in fruits and vegetables. Eighteen organophosphorus insecticides, azinphos-ethyl, chlorpyrifos, diazinon, dichlorvos, dimethoate, ethion, ethoate-methyl, fenitrothion, fenthion, formothion, malathion, methidathion, mevinphos, parathion, phosalone, phosphamidon, thiometon, and trichlorphon, and 7 metabolites, fenitrooxon, fenthion sulfoxide, fenthion sulfone, malaoxon, desethylphosphamidon, thiometon sulfoxide, and thiometon sulfone, were extracted from different crops with acetone and partitioned into hexane or ethyl acetate, according to their polarities. The hexane extract was cleaned up by eluting from a Florisil column with acetone-hexane (4+96). The ethyl acetate extract needs no cleanup. The concentrated extracts were analyzed by gas-liquid chromatography using thermionic detectors. Recoveries conducted at fortification levels ranging from 0.1 to 2 mg/kg were in most cases above 80%. The limit of sensitivity is less than 0.1 mg/kg. SN - 0004-5756 UR - https://www.unboundmedicine.com/medline/citation/7430038/Gas_liquid_chromatographic_determination_of_organophosphorus_insecticide_residues_in_fruits_and_vegetables_ DB - PRIME DP - Unbound Medicine ER -