王裔耿, 普秋榕, 陈宏仙, 殷红, 丁元明, 杨玲春, 李云飞. 气相色谱法测定农产品中8种有机氯农药的残留[J]. 云南大学学报(自然科学版), 2015, 37(5): 750-757. doi: 10.7540/j.ynu.20150239
引用本文: 王裔耿, 普秋榕, 陈宏仙, 殷红, 丁元明, 杨玲春, 李云飞. 气相色谱法测定农产品中8种有机氯农药的残留[J]. 云南大学学报(自然科学版), 2015, 37(5): 750-757. doi: 10.7540/j.ynu.20150239
WANG Yi-geng, PU Qiu-rong, CHEN Hong-xian, YIN Hong, DING Yuan-ming, YANG Ling-chun, LI Yun-fei. Determination of eight organochlorine insecticide residues inagricultural products by Gas Chromatography[J]. Journal of Yunnan University: Natural Sciences Edition, 2015, 37(5): 750-757. DOI: 10.7540/j.ynu.20150239
Citation: WANG Yi-geng, PU Qiu-rong, CHEN Hong-xian, YIN Hong, DING Yuan-ming, YANG Ling-chun, LI Yun-fei. Determination of eight organochlorine insecticide residues inagricultural products by Gas Chromatography[J]. Journal of Yunnan University: Natural Sciences Edition, 2015, 37(5): 750-757. DOI: 10.7540/j.ynu.20150239

气相色谱法测定农产品中8种有机氯农药的残留

Determination of eight organochlorine insecticide residues inagricultural products by Gas Chromatography

  • 摘要: 建立了气相色谱测定食品中六六六4种同分异构体和滴滴涕4种同分异构体残留量的方法.样品由丙酮/石油醚提取,微型化磺化反应进行净化,采用气相色谱仪测定,外标法定量.结果表明:在5~100 g/L范围内8种有机氯农药的线性良好;所有农药的LOD范围为0.59~5.37 g/kg,LOQ为1.97~17.86 g/kg;在5、10、20 g/kg 3个添加水平下,8种农药的平均回收率在74.0%~106.1%之间,且RSD均小于11%.该方法简单、快速,准确度和精密度高,抗干扰能力强,可用于茶叶、姜、柑橘等农产品中8种有机氯农药的检测.

     

    Abstract: A method was developed for determination of eight organochlorine insecticide residues in agricultural products by gas chromatography.The samples were extracted with acetone/petroleum ether,and cleaned up with microsulfonation reaction the extracts were analyzed by gas chromatography.External standard calibration method was used for quantification.The linearities of calibration curves of the eight residues were in good with the correlation coefficients greater than 0.997 in the range of 5100 g/L.The limits of the detection(LODs) of the eight residues were in the range of 0.595.37 g/kg,and the limits of the quantification (LOQs) were in the range of 1.9717.86 g/kg.The recoveries of the eight residues were in the range of 74.0%106.1% at the three spiked levels(5,10,20 g/kg),and the relative standard deviations (RSDs) were all below 11%.The method is simple,quick and effective to analyze the eight organochlorine insecticide residues in agricultural products,such as tea,ginger,oranges ect.

     

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