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Automated multiresidue analysis of pesticides in olive oil by on-line reversed-phase liquid chromatography-gas chromatography using the through oven transfer adsorption-desorption interface
被引:46
作者:
Sanchez, R
Vazquez, A
Andini, JC
Villén, J
机构:
[1] Univ Castilla La Mancha, Escuela Tecn Super Ingn Agronomos, Albacete 02071, Spain
[2] Univ Castilla La Mancha, Escuela Magisterio Albacete, Dept Quim Fis, Albacete 02071, Spain
[3] Ctr Reg Invest & Desarrollo Santa Fe, RA-3000 Guemes, Santa Fe, Argentina
关键词:
through oven transfer adsorption-desorption interface;
olive oil;
interfaces;
LC-GC;
liquid chromatography-gas chromatography;
pesticides;
D O I:
10.1016/j.chroma.2003.12.018
中图分类号:
Q5 [生物化学];
学科分类号:
071010 ;
081704 ;
摘要:
A multiresidue. automated and rapid method for the determination of pesticide residues in olive oil is presented. The method employs the through oven transfer adsorption-desorption interface for the on-line coupling of reversed-phase liquid chromatography and gas chromatography. In this fully automated system, olive oil is directly injected with no sample pre-treatment step other than filtration. Methanol-water is used as eluent in the liquid chromatography pre-separation step. The selected liquid chromatography fraction containing the pesticides is automatically transferred to the gas chromatography. The liquid chromatography column flow during elution is different from the flow during the transfer. Using a flame ionisation detector, pesticide detection limits varied from 0.1 to 0.3 mg/l. (C) 2004 Elsevier B.V. All rights reserved.
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页码:167 / 172
页数:6
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