蚊香中4种新型菊酯类有效成分分析方法.pdfVIP

第49卷第11期 农 药 Vol. 49, No. 11 2010年11月 AGROCHEMICALS Nov. 2010 农药分析 蚊香中 种新型菊酯类有效成分分析方法 4 游飞明 (福建省中心检验所，福州 350002) 摘要：建立蚊香中环戊烯丙菊酯、四氟甲醚菊酯、氯氟醚菊酯、炔咪菊酯4种有效成分分析方法。采用HP -5毛细 管柱分离，气相色谱仪-火焰离子化检测器检测，保留时间定性，内标法定量，结果组分间分离效果好，所有组分 在0.02~5.00 g/L质量浓度范围内具有良好线性关系，相关系数大于0.999 9 ，回收率在98.1%~101.8%之间，相对标 准偏差RSD小于2% ，方法检出限在0.001%~0.002%之间。 关键词：蚊香；环戊烯丙菊酯；四氟甲醚菊酯；氯氟醚菊酯；炔咪菊酯；气相色谱 中图分类号： 文献标志码： 文章编号： TQ450.7 A 1006-0413(2010)11-0819-03 Analysis Method for Four Novel Pyrethroids Effective Components in Mosquito-repellent Incense YOU Fei-ming (Fujian Provicinal Central Inspection Institute, Fuzhou 350002, China) Abstract: A gas chromatography method with hydrogen fl ame ionization detector for the simultaneous detection and confi rmation of four effective components terallethrin, dimefl uthrin, meperfl uthrin and imiprothrin in mosquito-repellent incense. After separated by HP-5 capillary column, the analytes were qualifi ed by the retention time and quantifi ed by internal standard method. Under the optimized conditions, the limits of detection were in the range of 0.001-0.002% with precisions (RSDs) lower than 2%, and all of the analysis compounds exhibited good linearity over a range of 0.02-5.00 g/L. The linear correlation coeffi cient was more than 0.9999. The mean recoveries varied between 98.1 and 101.8%. Key words: mosquito-repellent incense; terallethrin; dimefl uthrin; meperfl uthrin; imiprothrin; gas chromatography 环戊烯丙菊酯、四氟甲醚菊酯、氯氟醚菊酯、炔咪菊酯 菊酯，含量≥99.5% ；炔咪菊酯，含量≥98.5% ，均购