摘要
建立了高效液相色谱法分析枸杞中吡虫啉、阿维菌素残留量的方法。样品采用酸性乙腈溶液提取,以高效液相色谱法分离检测,面积外标法定量分析,吡虫啉标准曲线的线性关系系数为0.9997,阿维菌素为0.9995,线性范围为10.0-1 000μg/L。枸杞中吡虫啉平均回收率92.0%-110%,最小检测浓度0.047μg/kg;阿维菌素平均回收率86.0%-98.0%,最小检测浓度0.33μg/kg。该分析方法具有良好的重现性,定量结果的相对标准偏差均小于10%,可满足检测分析要求。
This is a new method to determinate the imidacloprid and avermectin residuce in Fructus lycii. Sample was determinated by HPLC, the acidic acetonitrile as abstraction liquid was used. After being separated by HPLC-UV,the data of this sample was analysed with external standard method. The result are：the linear behavior figure of the standard curve of imidacloprid is 0. 9997 ,avermectin is 0. 9995, and the linearity range is 10.0-1 000 μg/L. The content of imidacloprid is 92.0%-110%, MRL is 0.01 mg/kg; and avermectin is 76.0%-98.0%, MRL is 0.05 mg/kg. This method has good reproductivity, RSD is smaller than 15 %
出处
《西北农业学报》
CAS
CSCD
北大核心
2007年第2期250-252,256,共4页
Acta Agriculturae Boreali-occidentalis Sinica
作者简介
王晓菁（1972-），女，在读硕士研究生，主要从事食品检验及农药残留分析研究。
通讯作者：潘灿平。
