气相色谱法测定水产品中敌百虫、敌敌畏残留量
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S948

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2005年福建省地方标准制修订项目 (闽质监标函[2005]83号)


Determination of trichlorfon and dichlorvos residues in fishery products by gas chromatography
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    摘要:

    通过对色谱条件和样品前处理方法的研究比较,建立了水产品中敌百虫、敌敌畏残留量测定的气相色谱法。样品用丙酮-水溶液(2+1,v/v)提取,乙酸锌去脂,活性碳脱色,二氯甲烷萃取,浓缩后用气相色谱-火焰光度检测器(GC-FPD)测定。敌百虫在0.1~20μg/mL、敌敌畏在0.025~5μg/mL内线性关系良好(r2≥0.9995);0.01~4mg/kg添加浓度水平的回收率在74.8%~106.8%之间,相对标准偏差(RSD)为1.12%~13.7%;敌百虫的定量限为0.04mg/kg、敌敌畏的定量限为0.01mg/kg。该方法操作简捷,准确可靠,能满足水产品中敌百虫、敌敌畏残留的检测要求。

    Abstract:

    Gas chromatography method was developed for determination of trichlorfon and dichlorvos residues in fishery products by comparing chromatography conditions and the sample pretreatment. The samples were extracted with acetone-water (2+1, v/v) and discolored by activated carbon, lipids were removed by ZnAC, then the residues were re-extracted by dichloromethane and determined by gas chromatography with flame photometric detector (GC-FPD) . The linear range of trichlorfon and dichlorvos were 0.1~20 μg/mL and 0.025~5 μg/mL (r2≥0.999 5) . When spiked with 0.04, 0.4, 4 mg/kg of trichlorfon and 0.01, 0.1, 1 mg/kg of dichlorvos, the average recoveries ranged from 74.8% to 106.8% and their relative standard deviations (RSD) were between 1.12% and 13.7%. The detection limits of trichlorfon and dichlorvos were 0.04 mg/kg and 0.01 mg/kg separately. This method is simple, reliable and can be applied to detection of trichlorfon and dichlorvos residues in fishery products.

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叶玫,余颖,贺学荣,姜琳琳,吴成业.气相色谱法测定水产品中敌百虫、敌敌畏残留量[J].上海海洋大学学报,2010,(4):489-494.
YE Mei, YU Ying, HE Xue-rong, JIANG Lin-lin, WU Cheng-ye. Determination of trichlorfon and dichlorvos residues in fishery products by gas chromatography[J]. Journal of Shanghai Ocean University,2010,(4):489-494.

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  • 收稿日期:2009-12-11
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  • 在线发布日期: 2022-11-21
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