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当前位置: 首页 > 文章 > GC-μECD法快速检测猪肉地西泮残留 安徽农业科学 2009,37 (18) 22-23+32
Position: Home > Articles > Quick Determination of Diazepam in Pork by Gas Chromatograph-microelectron Capture Detection Journal of Anhui Agricultural Sciences 2009,37 (18) 22-23+32

GC-μECD法快速检测猪肉地西泮残留

作  者：
张玉洁;张素霞;程林丽;沈建忠;梁春来;杨春燕
单  位：
中国农业大学动物医学院
关键词：
地西泮;气相色谱;微电子捕获检测器;检测;残留
摘  要：
[目的]利用气相色谱-微电子捕获(GC-μECD)检测法,快速检测猪肉中地西泮残留,为该类药物在动物性食品检测提供参考。[方法]首先用乙腈超声提取猪肉中的地西泮,C18固相萃取柱净化,利用GC-μECD法进行残留检测,外标法定量。[结果]在1~1 000μg/L范围内药物色谱峰面积与浓度线性关系良好,相关系数达到0.999 4。对空白猪肉进行1~50μg/kg范围的药物添加回收试验,平均回收率为83.5%~94.9%,日内变异系数为2.4%~8.1%,日间变异系数为3.9%~6.4%。检出限为0.31μg/kg,定量限为1μg/kg。[结论]该方法简便、快速,稳定性好,灵敏度高,线性范围广,适用于猪肉中地西泮的残留检测。
译  名：
Quick Determination of Diazepam in Pork by Gas Chromatograph-microelectron Capture Detection
作  者：
ZHANG Yu-jie et al(Institute of Animal Medicine,China Agricultural University,Beijing 100193)
关键词：
Diazepam;Gas chromatography;Micro-electron capture detector;Detection;Residue
摘  要：
[Objective] The research aimed to detect diazepam residue in pork rapidly by gas chromatography with micro-electron capture detector method and provide reference for examining this kind of drug in the foord stuffs of animal origin.[Method]Diazapam was extracted from pork by acetonitrile,cleaned up on C18 SPE column and subsequently detected by GC-μECD,and quantified with external standard method.[Results] The concentration of drug from 1 to 1 000 μg/L to peak area showed good calibration curve with coefficient value of 0.999 4.When spiked with 1-50 μg/kg of diazepam,the recovery was 83.5%-94.9%,the inter-day RSD and intra-day RSD were between 2.4%-8.1% and 3.9%-6.4% respectively.The LOD and LOQ was 0.31 μg/kg and 1 μg/kg respectively.[Conclusion]The method was simple,rapid,sensitive and was suitable for residue determination of diazepam in pork.

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