气相色谱法测定稻谷中有机磷农药残留的方法研究  

Study on the Method for Determining Organophosphorus PesticideR esidues in Paddy by Gas Chromatography

作　　者：陈垂凤 CHEN Chuifeng(Haikou Grain and Oil Product Quality Monitoring Station,Haikou 570145,China)

机构地区：[1]海口市粮油产品质量监测站,海南海口570145

出　　处：《现代食品》2023年第8期208-210,共3页Modern Food

摘　　要：本文主要运用气相色谱法测定稻谷中4种有机磷农药的残留,采用程序升温方法,保留时间定性、外标法定量,建立了稻谷中4种有机磷农药同时测定的气相色谱法。最低检出限范围为0.011 mg/kg~0.019 mg/kg,精密度高,加标回收率为80.6%~103.1%,检测结果证明该检测方法满足农药多残留的检测要求。该方法操作简单、准确、可靠,适用于稻谷中敌敌畏、甲拌磷、马拉硫磷和毒死蜱等农药多残留的测定。This study focused on the determination of four organophosphorus pesticides residues in paddy by Gas chromatography,programmed temperature method,retention time qualitative method and external standard method quantitative method,the gas chromatography for simultaneous determination of four organophosphorus pesticides in paddy was established.The minimum detection concentration range is 0.011 mg/kg~0.019 mg/kg,the precision is high,the recovery rate is 80.6%~103.1%,the detection result proves that this method can meet the requirements of multi-residue detection of pesticides.The method is simple,accurate and reliable,and is suitable for the determination of dichlorvos,methamidophos,malathion and toxicophore in paddy.

关 键 词：气相色谱 有机磷农药 残留 稻谷 

分 类 号：R155.52[医药卫生—营养与食品卫生学]