摘要
利用气相色谱仪建立了大米中12种有机磷类农药残留量的测定方法。测定结果表明,在DB-1701中,供试的12种农药在大米中的分离状况良好,12min内就出峰完毕。12种农药在3个添加水平下的平均回收率为63.00%～126.33%,相对标准偏差在1.15%～11.12%之间,检出限在0.0010～0.0037mg/kg之间。建立的方法具有测定有机磷农药种类多、快速、准确度和精密度高等优点,能满足农药多残留分析的要求。
A method for the determination of 12 kinds of the residues of organophosphorus pesticide in rice by gas chromatograph was developed. The result showed that all the residues were separated well in DB- 1701 in 12 rain. The average recovery rate of the 12 pesticides with 3 amounts of addition were ranged from 63.00% to 126.33%. The relative standard deviation were around 1.15%- 11.12% and the detection limit 0.0010 - 0.0037 mg/kg. This method has the merits of rapid, high accuracy, precision and can meet the needs of detenninating pesticide residue.
出处
《粮油食品科技》
2009年第4期33-35,共3页
Science and Technology of Cereals,Oils and Foods
关键词
大米
有机磷农药
农药残留
气相色谱
测定
flee
organophosphorus pesticide
pesticide residue
gas chromatography（GC/FPD）
determination
