西维因在粮食中的残留消解动态及残留分析方法

ANALYSIS METHODS OF CARBARYL RESIDUE AND ITS DEGRADATION IN GRAIN

采用高压液相色谱法测定西维因在粮食中的残留量。西维因在粮食中回收率为92 2 %～ 10 4 8% ,最低检出浓度 0 5 ppm ,在稻谷、小麦中残留分解较快 ,与防虫磷相似。稻谷经加工成大米和米饭 ,药剂残留即分解殆尽 ,故食用安全。

Carbaryl residue in grain was determined by HPLC.The rate of recovery of carbaryl in grain was 92 2%～104 8%,the lowest detection concentration was 0.5ppm,the residue in paddy and wheat was fastly degradated like malachion.The residue in rice and cooked rice can be completely degradated.