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本文采用ＨＰ１７０１大口径毛细管柱为分离柱，测定了柑桔中７种有机磷农药残留量；比较了常用的７种有机磷农药在柑桔生长不同时期的残留情况。本法对７种有机磷农药的回收率范围为８３．５％—１０６．４％，变异系数为３．０％—７．８％，最低检测浓度为０．０１０ｍｇ／ｋｇ。
In this paper, HP1701 large-diameter capillary column as a separation column, the determination of citrus seven kinds of organophosphorus pesticide residues; compared seven kinds of commonly used organophosphorus pesticide residues in different periods of citrus growth. The recoveries of seven organophosphorus pesticides ranged from 83.5% to 106.4%. The coefficient of variation was 3.0% -7.8%. The lowest detection limit was 0.010 mg / kg.