Simplified multiresidue method for the determination of organophosphorus insecticides in olive oil

被引:52
作者
Cabras, P [1 ]
Angioni, A [1 ]
Melis, M [1 ]
Minelli, EV [1 ]
Pirisi, FM [1 ]
机构
[1] UNESP, INST QUIM, DEPT QUIM ORGAN, ARARAQUARA, SP, BRAZIL
关键词
olive oil; environmental analysis; food analysis; organophosphorus compounds; pesticides;
D O I
10.1016/S0021-9673(96)00840-0
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
A simple and rapid method for the determination of 13 organophosphorus insecticides and their metabolites in olive oil by GC is described. The pesticide was extracted from oil with acetonitrile and no cleanup was needed. GC-nitrogen-phosphorus detection response factors of pesticides were affected by solvents and coextractive substances. Pesticides in hexane showed on average higher response factors. Standards were prepared in the residue-free oil extract solubilized in hexane to handle effects of matrix and solvent. The low amount of coextractive substances does not decrease the column efficiency, even after a few hundred analyses. Recovery at three fortification levels (ca. 0.1, 1.0 and 3.0 mg/kg) ranged from 74 to 118%, With coefficients of variation ranging from 1 to 16.
引用
收藏
页码:327 / 331
页数:5
相关论文
共 7 条
  • [1] CONTE E, 1994, PRINCIPI ATTIVI REGI
  • [2] DEKROON MG, 1996, 1 EUR PEST RES WORKS
  • [3] EXPLANATION OF THE MATRIX-INDUCED CHROMATOGRAPHIC RESPONSE ENHANCEMENT OF ORGANOPHOSPHORUS PESTICIDES DURING OPEN-TUBULAR COLUMN GAS-CHROMATOGRAPHY WITH SPLITLESS OR HOT ON-COLUMN INJECTION AND FLAME PHOTOMETRIC DETECTION
    ERNEY, DR
    GILLESPIE, AM
    GILVYDIS, DM
    POOLE, CF
    [J]. JOURNAL OF CHROMATOGRAPHY, 1993, 638 (01): : 57 - 63
  • [4] Lentza-Rizos C, 1995, Rev Environ Contam Toxicol, V141, P111
  • [5] Morchio G., 1992, Rivista Italiana delle Sostanze Grasse, V69, P147
  • [6] THIER HP, 1986, ANAL CHEM PRAXIS
  • [7] Yamazaki Y, 1996, J AOAC INT, V79, P787