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第 39 卷第 2 期Vol. 39 No. 2
2009 年 4 月Apr 2009

所屬欄目:分析與測試

苯醚甲環(huán)唑殘留量的氣相色譜分析方法研究
任 競1,2,龔道新1,陳九星2,陳力華2,劉義珂2,聶思橋2 (1. 湖南農業(yè)大學(xué) 資環(huán)學(xué)院 湖南 長(cháng)沙 410128;2. 湖南化工研究院 國家農藥創(chuàng )制工程技術(shù)研究中心 湖南 長(cháng)沙 410007)
摘 要:建立了氣相色譜法測定香蕉果肉、全果和土壤中苯醚甲環(huán)唑殘留量的分析方法。實(shí)驗結果表明:添加量為0.02~2.0 mg/kg時(shí),果肉、全果和土壤中的平均回收率分別為:86.88%~98.52%、83.80%~96.01%和94.00%~97.27%,相對標準偏差分別為2.77%~5.74%、3.98%~6.11%和2.76%~5.32%,方法的最小檢出量為2.0×10-12 g,最低檢出濃度為0.002 mg/kg。方法快速、靈敏度高、重現性好,具有較好的準確度和精確度,可用于環(huán)境系統中的苯醚甲環(huán)唑的殘留檢測分析。
關(guān)鍵詞:苯醚甲環(huán)唑;氣相色譜;殘留;香蕉;土壤
中圖分類(lèi)號:TQ450.2+63  文獻標識碼:B  文章編號:1009-9212(2009)02- 0063-04
Determination of Difenoconazole Residue in Banana and Soil by Using Gas Chromatography
REN Jing1,2,GONG Dao-xin1,CHEN Jiu-xin2,CHEN Li-hua2,LIU Yi-ke2,NIE Si-qiao2 (1.College of Resources and Environment,Hunan Agricultural University,Changsha 410128,China; 2. National Engineering Research Center of Agrochemicals,Hunan Research Institute of Chemical Industry,Changsha 410007,China)
Abstract:An analysis method for determination of difenoconazole residue in banana and soil by using GC was established. When the content of difenoconazole was 0.02 mg/kg,0.2 mg/kg and 2.0 mg/kg,the average recoveries of difenoconazole in pulp,whole banana and soil were 86.88%~98.52%,83.80%~96.01% and 94.00%~97.27%,respectively. The corresponding relative standard deviations were 2.77%~5.74%,3.98%~6.11% and 2.76%~5.32%,respectively. The limit of detection of difenoconazole was 2.0×10-12 g and the limit of quantification of method for difenoconazole was 0.002 mg/kg.The method was fast,sensitive,simple,reproducible and practical for detection of defenoconazole residue in environment systems.
Key words:difenoconazole;gas chromatography;residue;banana;soil
作者簡(jiǎn)介:任 競(1980-),男,湖北武漢人,碩士研究生,研究方向:農藥殘留檢測。(E-mail:Renjing_1980@sohu.com)
聯(lián) 系 人:龔道新,教授,博士,研究方向:農藥殘留。
收稿日期:2009-03-17
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