Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) · 2002 · 12 citations · 4 references
PharmacyCrop SciencesToxicologyMass Spectrometric AnalysisPesticide ToxicologyConcentration TechniquesPesticide Residue AnalysisPesticide ResiduesResidue ToxicologyAnalytical Methods DevelopmentChromatographic Analysis Of HerbicidesInterlaboratory Method ComparisonPesticide Residues In SoilReference Standards For HerbicidesResidue Detection Limits
Ion-trap GC/MS/MS was evaluated for the multi-residue determination of pesticides in agricultural products. Matrices were extracted from samples (spinach, carrot, onion and brown rice) with acetone and submitted to gel permeation chromatography, followed by a clean-up step through a graphite carbon cartridge. Thirty-five pesticides were added to either matrix, and analyzed by GC/MS/MS. Detection limits of pesticides by GC/MS/MS was almost the same as those by GC/MS (SIM). Coefficients of variation of peak area in 5 measurements of each pesticide at 0.1 microgram/mL or 0.05 microgram/mL with or without matrices were mostly acceptable, though those of 20 pesticides out of 35 were higher than 10% at a concentration of 0.02 microgram/mL. It was indicated that matrix artifacts, which interfere with GC/MS-Scan analysis, could be eliminated in some cases by using GC/MS/MS.
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Jesús Muñoz‐Guerra, Daniel Carreras, C. Soriano et al. · Journal of Chromatography B Biomedical Sciences and Applications · 1997 · 42 citations
Yumi Akiyama, Miho YANG, Takao Mitsuhashi et al. · Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) · 1996 · 34 citations · Full text