液相色谱-串联质谱法检测黄瓜中氯吡脲的残留量  

Determination of Forchlorfenuron Residues in Cucumber by LC-MS/MS

作　　者：黄蕾[1] 刘宝峰[1] 

机构地区：[1]上海市农药研究所,上海200032

出　　处：《现代农药》2014年第2期44-46,共3页MODERN AGROCHEMICALS

摘　　要：介绍了利用液相色谱-串联质谱快速、准确测定黄瓜中氯吡脲残留量的方法。样品用乙腈提取，Carb/NH2固相萃取小柱净化，多反应监测技术检测。方法的检出限为0.002 mg/kg，线性范围为0.001～0.100 mg/L，相关系数为0.9997；在0.01～0.20 mg/kg的添加浓度下，氟吡脲的加标回收率为95.0%～111.0%，相对标准偏差（RSD）为2.99%～4.78%。A LC-MS/MS method was developed for determination of forchlorfenuron in cucumber. The sample was extracted by acetonitrile, cleaned up by Carb/NH2 column, and then determined using multi-reactions monitoring （MRM） technology. The results showed that the linearities of regression equations were good in the range of 0.001-0.100 mg/L with the correlation coefficient of 0.999 7. The limit of quantification was 0.002 mg/kg. The average recoveries of forchlorfenuron were 95.0%-111.0%, and the relative standard deviations were 2.99%-4.78%.

关 键 词：氯吡脲 液相色谱-串联质谱 残留 黄瓜 

分 类 号：O657.63[理学—分析化学] TS255.7[理学—化学]