| 荷移荧光光谱法测定牛奶中苄青霉素残留 |
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| 引用本文： | 徐兴志,张尹,杨亚玲,刘谋盛.荷移荧光光谱法测定牛奶中苄青霉素残留[J].分析试验室,2011,30(7):1-5. |
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| 作者姓名： | 徐兴志 张尹 杨亚玲 刘谋盛 |
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| 作者单位： | 昆明理工大学生命科学与技术学院,昆明,650224 |
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| 基金项目： | 科技型中小企业技术创新基金(10C26215305131); 昆明理工大学分析测试基金(2009092)资助 |
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| 摘 要： | 采用荧光光谱法研究了电子供体苄青霉素降解产物与电子受体四氯苯醌(TCBQ)之间的荷移反应，结果表明TCBQ与苄青霉素的酸性降解产物在甲醇-水介质中易发生荷移反应，生成稳定的络合物，其荧光强度较苄青霉素降解产物本身有了显著的增强。据此建立一种测定苄青霉素的新方法，在最佳条件下，苄青霉素浓度在0.30～8.0 mg/L范围...
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| 关 键 词： | 苄青霉素 四氯苯醌 荷移反应 荧光光谱 |
Fluorescence spectrometric determination of benzylpenicillin residues in milk by charge-transfer reaction |
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| XU Xing-zhi,ZHANG Yin,YANG Ya-ling,LIU Mou-sheng.Fluorescence spectrometric determination of benzylpenicillin residues in milk by charge-transfer reaction[J].Chinese Journal of Analysis Laboratory,2011,30(7):1-5. |
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| Authors: | XU Xing-zhi ZHANG Yin YANG Ya-ling LIU Mou-sheng |
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| Institution: | XU Xing-zhi,ZHANG Yin,YANG Ya-ling* and LIU Mou-sheng(Faculty of Life Science and Technology,Kunming University of Science and Technology,Kunming 650224) |
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| Abstract: | The charge-transfer reaction of benzylpenicillin degradation droduct as the donor with 2,3,5,6-tetrachloro-1,4-benzoquinone(TCBQ) as the acceptor was investigated by fluorimetry.The results showed that TCBQ was prone to react with acidic degradation products of benzylpenicillin to producea stable charge-transfer complex in a mixture of methanol and water.Fluorescence intensity of the complex was increased significantly relative to benzylpenicillin degradation product.Therefore a new method for the determina... |
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| Keywords: | Benzylpenicillin 2 3 5 6-tetrachloro-1 4-benzoquinone Charge-transfer reaction Fluorescence spectroscopy |
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