摘要
用乙酸乙酯和丙酮,采用旋涡震荡法提取,并用活性炭和无水硫酸钠进行净化脱色和脱水。提取液用高效液相色谱仪测定,外标法定量。其特点是方法简便、快速,结果准确。检测波长:220;色谱柱:ZORBAXSB-C184.6mm×150mm;流动相:甲醇与水(体积比为70∶30);流速:1mL/min;进样量:10mL。该方法的相对标准偏差为1.42%～2.93%,平均回收率在83.26%～99.53%之间。
This method used ethyl acetale and acetone, adopting the eddy-oscillate method to extract, followed by decolorization and dehydration with bycarbon active and sodium sulfate anhydrous. The extract was quantified with ESTD method by HPLC（Agilent 1100 DAD）. Its characteristics was simple procedure, fast process, with accurate result.
出处
《农药》
CAS
北大核心
2006年第10期686-686,688,共2页
Agrochemicals
关键词
甲霜灵
蔬菜
农药残留
metalaxyl
vegetables
agrochemical remanet
