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

所属栏目:分析与测试

苯醚甲环唑残留量的气相色谱分析方法研究
任 竞1,2,龚道新1,陈九星2,陈力华2,刘义珂2,聂思桥2 (1. 湖南农业大学 资环学院 湖南 长沙 410128;2. 湖南化工研究院 国家农药创制工程技术研究中心 湖南 长沙 410007)
摘 要:建立了气相色谱法测定香蕉果肉、全果和土壤中苯醚甲环唑残留量的分析方法。实验结果表明:添加量为0.02~2.0 mg/kg时,果肉、全果和土壤中的平均回收率分别为:86.88%~98.52%、83.80%~96.01%和94.00%~97.27%,相对标准偏差分别为2.77%~5.74%、3.98%~6.11%和2.76%~5.32%,方法的最小检出量为2.0×10-12 g,最低检出浓度为0.002 mg/kg。方法快速、灵敏度高、重现性好,具有较好的准确度和精确度,可用于环境系统中的苯醚甲环唑的残留检测分析。
关键词:苯醚甲环唑;气相色谱;残留;香蕉;土壤
中图分类号:TQ450.2+63  文献标识码:B  文章编号: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
作者简介:任 竞(1980-),男,湖北武汉人,硕士研究生,研究方向:农药残留检测。(E-mail:Renjing_1980@sohu.com)
联 系 人:龚道新,教授,博士,研究方向:农药残留。
收稿日期:2009-03-17