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本文采用ＨＰ１７０１毛细管柱为分离柱，测定了柑桔中７种有机磷农药残留量；比较了常用的七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％，检测限为０．１～２０×１０－９ｇ。
In this paper, HP1701 capillary column as a separation column, the determination of citrus seven kinds of organophosphorus pesticide residues; compared seven commonly used organophosphorus pesticide residues in citrus during different periods. The recoveries of seven organophosphorus pesticides ranged from 83.5% to 106.4% with a coefficient of variation of 3.0% to 7.8% with a detection limit of 0.1 to 20 × 10-9g.