Determination of organophosphorus and triazine pesticides in olive oil by on-line coupling reversed-phase liquid chromatography/gas chromatography with nitrogen-phosphorus detection and an automated through-oven transfer adsorption-desorption interface

A method is described for the simultaneous determination of organophosphorus and triazine pesticides in olive oil, whereby reversed-phase liquid chromatography (LC) is coupled to gas chromatography by means of an automated through-oven transfer adsorption-desorption (TOTAD) interface. The olive oil...

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Veröffentlicht in:Journal of AOAC International 2005-07, Vol.88 (4), p.1255-1260
Hauptverfasser: Sanchez, R, Cortes, J.M, Villen, J, Vazquez, A
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container_title Journal of AOAC International
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creator Sanchez, R
Cortes, J.M
Villen, J
Vazquez, A
description A method is described for the simultaneous determination of organophosphorus and triazine pesticides in olive oil, whereby reversed-phase liquid chromatography (LC) is coupled to gas chromatography by means of an automated through-oven transfer adsorption-desorption (TOTAD) interface. The olive oil needs to be filtered only before it is loaded into the liquid chromatograph, where preseparation of the pesticide residues from the other olive oil components is carried out by using methanol-water as the eluant. The LC fraction containing the pesticides is automatically transferred to the gas chromatograph by using the TOTAD interface, which almost totally eliminates the solvent, so that water-sensitive detectors such as the nitrogen-phosphorus detector can be used. Detection limits range from 0.07 to 0.38 microgram/L for organophosphorus pesticides and from 6.0 to 7.0 microgram/L for triazines. The results were compared with those obtained by flame ionization detection.
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Psychology</subject><subject>Gas chromatography</subject><subject>General aspects</subject><subject>herbicide residues</subject><subject>insecticide residues</subject><subject>Ions</subject><subject>Liquid chromatography</subject><subject>Methanol - analysis</subject><subject>Methods of analysis, processing and quality control, regulation, standards</subject><subject>Nitrogen - analysis</subject><subject>Olive Oil</subject><subject>Organophosphorus Compounds - analysis</subject><subject>organophosphorus insecticides</subject><subject>Pesticide Residues - analysis</subject><subject>Pesticides</subject><subject>Phosphorus - analysis</subject><subject>Plant Oils - metabolism</subject><subject>quantitative analysis</subject><subject>reversed-phase high performance liquid chromatography</subject><subject>Testing</subject><subject>Time Factors</subject><subject>triazine herbicides</subject><subject>Triazines - analysis</subject><subject>Water - analysis</subject><issn>1060-3271</issn><issn>1944-7922</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpdkU2LFDEQhhtR3A_9C5qLx16TTn8kx2X9hAUPuuehOql0R7qTNukeGX-7B2ucERYJIUXxvMVT5ElxKXRdl52uqqdU85aXsurERXGV83fOa9Hy6nlxIVrRVLrhl8Xvd7himn2A1cfAomMxDRDiMsZMN22ZQbBsTR5--YBswbx64y1m5gmf_B5Z9BPrDyyGcjoiJm4LFQNLuMeU0ZbLCBnZ5H9s3jIzpjjDGocEy3h4O0D-r8V--nVkwa8pDhjKRyaWXM1fz6MT0LOtxyCSII3YhrGMewxkCyE7TAxsjmk5JkoyPpckTis7MPiieOZgyvjy_F4XDx_ef7v7VN5_-fj57va-dJJXa-l6obmTSlRCuhqUaqFzPSjN0egGe47UUr2S1jTCdF3Vtx2vGyMbtH2nrLwubk5zB5hw54OLZGjoWJy9iQGdp_6tUJy3je40BV6dAsvWz2h3S_IzpMPu378R8OYMQDYwOVrY-PyI07rtVEfc6xPnIO5gSMQ8fK24kFxwoaSq5R9QF7Wu</recordid><startdate>20050701</startdate><enddate>20050701</enddate><creator>Sanchez, R</creator><creator>Cortes, J.M</creator><creator>Villen, J</creator><creator>Vazquez, A</creator><general>AOAC International</general><general>Oxford University Press</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope></search><sort><creationdate>20050701</creationdate><title>Determination of organophosphorus and triazine pesticides in olive oil by on-line coupling reversed-phase liquid chromatography/gas chromatography with nitrogen-phosphorus detection and an automated through-oven transfer adsorption-desorption interface</title><author>Sanchez, R ; Cortes, J.M ; Villen, J ; Vazquez, A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-f302t-fb190f381213f4a886a7fba890ec95eb0e8868b83dc51c772b67045c35edb78d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Adsorption</topic><topic>automatic detection</topic><topic>Biological and medical sciences</topic><topic>Calibration</topic><topic>Chromatography, Gas - methods</topic><topic>Chromatography, Liquid - methods</topic><topic>Contamination</topic><topic>Fat industries</topic><topic>food analysis</topic><topic>food contamination</topic><topic>Food industries</topic><topic>Fundamental and applied biological sciences. 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source Oxford University Press Journals All Titles (1996-Current); MEDLINE
subjects Adsorption
automatic detection
Biological and medical sciences
Calibration
Chromatography, Gas - methods
Chromatography, Liquid - methods
Contamination
Fat industries
food analysis
food contamination
Food industries
Fundamental and applied biological sciences. Psychology
Gas chromatography
General aspects
herbicide residues
insecticide residues
Ions
Liquid chromatography
Methanol - analysis
Methods of analysis, processing and quality control, regulation, standards
Nitrogen - analysis
Olive Oil
Organophosphorus Compounds - analysis
organophosphorus insecticides
Pesticide Residues - analysis
Pesticides
Phosphorus - analysis
Plant Oils - metabolism
quantitative analysis
reversed-phase high performance liquid chromatography
Testing
Time Factors
triazine herbicides
Triazines - analysis
Water - analysis
title Determination of organophosphorus and triazine pesticides in olive oil by on-line coupling reversed-phase liquid chromatography/gas chromatography with nitrogen-phosphorus detection and an automated through-oven transfer adsorption-desorption interface
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