Abstract
Abstract The retention time relative to parathion, absolute retention time, concentration range, peak asymmetry factor, and peak shape class are given for each of 50 organophosphorus pesticides analyzed by gas chromatography (GC) on 9 different packed columns. The packing materials used were 3% SP-2100, 1% Dexsil-300, 3% OV-17, 1.5% OV-17 + 1.95% QF-1, 4% SE-30 + 6% QF-1,3% OV-17 + 3% OV- 210, 5% DC-200 + 7.5% QF-1,3% Carbowax 20M, and 4% Reoplex- 400. Retention data were determined at 200°C with a carrier gas flow at uopt, using a flame photometric detector. The results should be useful for choosing the most suitable column for single or multiple pesticide residue analysis.
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