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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (10): 312-315.doi: 10.11924/j.issn.1000-6850.2013-2310

所属专题： 园艺

• 植物保护 农药 • 上一篇    下一篇

苹果与土壤中吡唑醚菌酯残留分析方法研究

周先学 刘传德 鹿泽启 王志新 于波 徐维华 于建垒   

  • 收稿日期:2013-08-29 修回日期:2013-09-10 出版日期:2014-04-05 发布日期:2014-04-05
  • 基金资助:
    农业部农药登记残留试验项目“60%百泰水分散粒剂中吡唑醚菌酯在苹果上的残留试验”(20072009)；烟台市科技发展计划项目“烟台主要蔬菜水果有害物质监测及调控治理技术的研究”(2008129)。

Study on Residual Analytical Method of Pyraclostrobin in Fruits and Soil

  • Received:2013-08-29 Revised:2013-09-10 Online:2014-04-05 Published:2014-04-05

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摘要： 为有效监测水果中吡唑醚菌酯残留，建立了苹果和土壤中吡唑醚菌酯残留量的快速、简单检测方法。用乙酸乙酯和丙酮的混合溶液提取苹果和土壤样品，氮气吹干后用甲醇定容，经液相色谱紫外检测器检测。结果表明：当添加水平为0.01~5.0 mg/kg时，吡唑醚菌酯在苹果和土壤中的添加回收率分别为86.7%~98.2%、79.8%~90.5%；相对标准偏差分别为0.01%~4.1%、0.2%~2.5%；最低检出浓度为0.01 mg/kg。该方法简单、快速，杂质干扰少，灵敏度高，完全能满足残留分析的要求。

关键词: 种群衰退, 种群衰退

Abstract: To efficiently monitor the residues of fruits, a simple and fast residual analytical method of pyraclostrobin in apples and soil was established. The mixed solution of ethyl acetate and acetone was utilized to extract the pyraclostrobin in samples. After nitrogen blowing to nearly dry, methanol was added to dissolve the residue and then the supernatant was detected by HPLC-UV. The results showed that under the additional level of 0.01-5.0 mg/kg, the recovery rates of pyraclostrobin in apples and soil were 86.7%-98.2% and 79.8%-90.5% with the RSD of 0.01%-4.1% and 0.2%-2.5% respectively. The LOD was 0.01 mg/kg. The method was simple, rapid and less interference. The sensitivity and accuracy of the proposed method were fit for analysis of pesticide residue in fruits and soil.