摘要
建立高效液相色谱法测定水果中的吡虫啉残留量的检测方法。采用改进的QuEChERS方法,乙腈匀浆提取,提取液加C18和PSA填料净化,液相色谱法检测。结果表明:方法的定量检测限为0.05mg/kg,标准曲线线性相关系数0.9988;当添加水平在0.05～0.20mg/kg范围内时,回收率均可在92%～102%之间,相对标准偏差在5%～11%之间。本方法是一种快速、准确、灵敏度高的同时检测水果中吡虫啉残留的检测方法。
A high performance liquid chromatography（HPLC） method was developed to determine imidaclprid residue in fruits.Samples were extracted by the improved QuEChERS method using acetonitrile as the solvent and purified on C18/PSA column.The detection limit of this developed HPLC method was 0.05 mg/kg and the linear correlation coefficient of standard curve was 0.9988.Recovery rates for imidaclprid in spiked samples at 0.05,0.1 mg/kg and 0.20 mg/kg was in the range of 92%-102% with a relative standard deviation varying from 5% to 11%.Therefore,this developed method is characteristics of rapid determination,high accuracy and sensitivity so that it is suitable for the detection of imidaclprid residue in fruits.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2011年第6期230-232,共3页
Food Science
