于慧敏, 黄显会, 杨刚, 方秋华. 高效液相色谱法测定牛奶及牛可食性组织中咪唑苯脲[J]. 华南农业大学学报, 2012, 33(2): 239-243. DOI: 10.7671/j.issn.1001-411X.2012.02.025
    引用本文: 于慧敏, 黄显会, 杨刚, 方秋华. 高效液相色谱法测定牛奶及牛可食性组织中咪唑苯脲[J]. 华南农业大学学报, 2012, 33(2): 239-243. DOI: 10.7671/j.issn.1001-411X.2012.02.025
    YU Hui-min, HUANG Xian-hui, YANG Gang, FANG Qiu-hua. Determination of Imidocarb Residues in Bovine Edible Tissues by High-Performance Liquid Chromatography[J]. Journal of South China Agricultural University, 2012, 33(2): 239-243. DOI: 10.7671/j.issn.1001-411X.2012.02.025
    Citation: YU Hui-min, HUANG Xian-hui, YANG Gang, FANG Qiu-hua. Determination of Imidocarb Residues in Bovine Edible Tissues by High-Performance Liquid Chromatography[J]. Journal of South China Agricultural University, 2012, 33(2): 239-243. DOI: 10.7671/j.issn.1001-411X.2012.02.025

    高效液相色谱法测定牛奶及牛可食性组织中咪唑苯脲

    Determination of Imidocarb Residues in Bovine Edible Tissues by High-Performance Liquid Chromatography

    • 摘要: 建立了高效液相色谱法(HPLC)测定牛奶及牛可食性组织中咪唑苯脲(IMD)残留.牛奶或已匀浆组织先用β-葡萄糖苷酶水解,组织用盐酸超声提取,再用提取液萃取,牛奶直接用提取液提取.用乙腈-戊烷磺酸钠水溶液作为流动相,经高效液相色谱C18柱分离后用紫外检测器检测.咪唑苯脲质量浓度在0.01~10.00 μg/mL的范围内呈现良好的线性关系,相关系数大于0.999;组织加标样品检出限为0.01 μg/g,定量限为0.02 μg/g.在定量限、最高残留限量、2倍最高残留限量添加水平下的平均回收率为80.02%~114.72%,批内相对标准偏差为0.83%~10.92%,批间相对标准偏差为7.45%~12.69%.表明该检测方法简单、灵敏、可靠,适用于牛奶及牛组织中咪唑苯脲残留的分析.

       

      Abstract: A confirmative method has been developed to determine imidocarb(IMD) residues in edible tissues and milk of bovine by high-performance liquid chromatography(HPLC).The tissues and milk were first hydrolyzed by β-glucosidase. The tissues were extracted with hydrochloric acid, ultrasonicated and back-extracted with extract while the milk was extracted with extract only. The mobile phase was acetonitrile and 1-pentansulfonic acid sodium salt solution. The analyte was detected by UV absorptive spectroscopy after separation by C18 column. The range of linearity was 0.01-10.00 μg/mL; the relevant coefficient was more than 0.999. The limit of detection (LOD) was 0.01 μg/g, and the limit of qualification(LOQ) was 0.02 μg/ g. Mean recoveries from bovine tissues and milk fortified at LOQ, MRL(the maximum residue limit) and 2MRL were from 80.02%-114.72%, whereas the corresponding RSDs were from 0.83%-12.69%. In conclusion, the established method is simple, sensitive and reproducible for the determination of imidocarb residues in edible tissues and milk of bovine.

       

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