高等学校化学学报

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酶催化-荧光猝灭法测定药物中的万古霉素

冯霞光, 张敏, 赵虎, 王怀友   

  1. 山东师范大学化学化工与材料科学学院, 济南 250014
  • 收稿日期:2006-11-24 修回日期:1900-01-01 出版日期:2007-07-10 发布日期:2007-07-10
  • 通讯作者: 王怀友

Determination of Vancomycin in Injection via Enzyme Catalysis-Fluorescence Quenching Method

FENG Xia-Guang, ZHANG Min, ZHAO Hu, WANG Huai-You*   

  1. College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
  • Received:2006-11-24 Revised:1900-01-01 Online:2007-07-10 Published:2007-07-10
  • Contact: WANG Huai-You

摘要:

根据万古霉素对产物的荧光具有猝灭作用的原理, 本文研究了万古霉素的荧光猝灭机理, 建立了测定万古霉素的方法. 该方法具有操作简便、快速及选择性好等优点, 可用于注射液中万古霉素含量的测定, 与药典法对照, 结果令人满意.

关键词: 万古霉素, 酪氨酸, 辣根过氧化酶, H2O2, 荧光猝灭

Abstract:

A new method for determining vancomycin was established based on the principle of fluorescence quenching. The mechanism of the fluorescence quenching was discussed. A linear relationship is obtained between F0/F and the concentration of vancomycin in the range of 40.0—450.0 μg/mL with the correlation coefficiency 0.9991.The detection limit was 10.91 μg/mL and the relative standard derivative was 0.70%. The effects of pH, foreign ions, standing time on the determination of vancomycin were examined. The results obtained by this method were agreed with those by the official method.

Key words: Vancomycin, Tyrosine, Horseradish peroxidase, H2O2, Fluorescence quenching

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