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Position: Home > Articles > Determination of Buprofezin in Soil by Gas Chromatography Hubei Agricultural Sciences 2011,50 (22) 186-188+200

气相色谱法测定土壤中的噻嗪酮

作  者：
张仙;王明明;刘军;陈浩;沈菁
单  位：
湖北省农业科学院农业质量标准与检测技术研究所;华中农业大学理学院
关键词：
气相色谱法;氮磷检测器;土壤;噻嗪酮;基质效应
摘  要：
建立了水稻田土壤中噻嗪酮的残留分析方法。土壤样品以乙腈为萃取溶剂进行超声波辅助提取,经NH2-SPE净化,乙腈-甲苯(3:1,V/V)洗脱,采用气相色谱-氮磷检测器法(GC-NPD)进行测定。对方法的准确度、精密度、灵敏度及线性范围进行了测试。在0.020～1.000 mg/L范围内,噻嗪酮的峰面积与其质量浓度呈良好的线性关系,相关系数为0.996 3。土壤样品中添加0.020～0.100 mg/kg噻嗪酮的平均回收率为87.0%～92.9%,相对标准偏差为2.3%～5.5%;方法检出限为0.002 mg/kg。该方法简单、快速、准确,适用于土壤中噻嗪酮残留的检测。
译  名：
Determination of Buprofezin in Soil by Gas Chromatography
作  者：
ZHANG Xian1,WANG Ming-ming2,LIU Jun1,CHEN Hao2,SHEN Jing1(1.Institute of Quality Standards & Testing Technology for Agro-Products,Hubei Academy of Agricultural Sciences,Wuhan 430064,China;2.College of Science,Huazhong Agricultural University,Wuhan 430070,China)
关键词：
gas chromatography;nitrogen-phosphorus detection;soil;buprofezin;matrix effect
摘  要：
An analytical method for determination of buprofezin in soil was developed.Soil samples were extracted with acetonitrile by ultrasonic-assisted extraction,cleaned up by solid phase extraction with a NH2 cartridge and eluted with acetonitrile-toluene(3∶1,V/V),and determined by gas chromatography with nitrogen-phosphorus detector(GC-NPD).It was demonstrated that the linearity was obtained in the concentration range of 0.020~1.000 mg/L with a correlation coefficient of 0.996 3.The average recoveries of the proposed method ranged from 87.0% to 92.9% with relative standard deviations of 2.3%～5.5% at the spiked level of 0.020～1.000 mg/kg.The limits of detection based on signal-to-noise ratio(S/N) of 3 times was 0.002 mg/kg.The proposed method is simple,rapid and accurate and suitable for detecting buprofezin in soil.

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