摘要
[方法]葡萄样品中的氯吡脲使用含1％乙酸的乙腈提取，N-丙基乙二胺（PSA）吸附剂净化，高效液相色谱-紫外检测器（HPLC-UV）检测；使用所建方法测定了氯吡脲在北京、杭州两地葡萄上的消解动态。【结果】氯吡脲的最低检出限为0．003mg／kg，在葡萄中的添加回收率为95％-104％，变异系数为1．0％-1．8％；在北京和杭州两地，氯吡脲在葡萄上的半衰期分别为11．6、23．1d。【结论】氯吡脲在葡萄中半衰期比在其他基质中更长。
[Methods] Forchlorfenuron in grape samples was extracted with acetronitrile containing acetic acid 1%, cleaned up by PSA adsorbent and detected by HPLC with UV detector. Residue dynamics in grape were studied by this method in Beijing and Hangzhou. [Results] The results showed that the limit of detection of forcholorfenuron was 0.003 mg/kg and the recoveries ranged from 95 to 104% with coefficient of variation 1.0-1.8%. The halflives of forcholorfenuron were 11.6 and 23.1 d in Beijing and Hangzhou, respectively. [Conclusions] Half-lives of forcholorfenuron in grape were relatively longer than that in other matrix.
出处
《农药》
CAS
北大核心
2011年第10期751-753,共3页
Agrochemicals
关键词
氯吡脲
葡萄
残留分析
消解动态
forchlorfenuron
grape
residue analysis
degradation dynamics
