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荧光光谱法研究Hg(Ⅱ)与牛血清白蛋白的相互作用
引用本文:韩木先,邹欣平,李跃勤.荧光光谱法研究Hg(Ⅱ)与牛血清白蛋白的相互作用[J].光谱实验室,2009,26(2):173-176.
作者姓名:韩木先  邹欣平  李跃勤
作者单位:湖北师范学院化学与环境工程学院,湖北省黄石市磁湖路82号,435002
基金项目:湖北师范学院研究生启动基金 
摘    要:在pH为7.15、离子强度为0.15mol/L的NaCl溶液条件下,采用荧光光谱法研究了Hg(Ⅱ)与牛血清白蛋白的相互作用。实验结果表明,Hg(Ⅱ)对牛血清白蛋白的荧光强度猝灭机理是一种静态猝灭,且Hg2+与牛血清白蛋白结合的位点数为2,表观络合常数(K)为2.468×10^10L^2·mol^-2。

关 键 词:荧光光谱法  牛血清白蛋白  Hg(Ⅱ)

Research on the Interaction between Hg(Ⅱ) and Bovine Serum Albumin by Fluorescence Spectroscopy
HAN Mu-Xian,ZOU Xin-Ping,LI Yue-Qin.Research on the Interaction between Hg(Ⅱ) and Bovine Serum Albumin by Fluorescence Spectroscopy[J].Chinese Journal of Spectroscopy Laboratory,2009,26(2):173-176.
Authors:HAN Mu-Xian  ZOU Xin-Ping  LI Yue-Qin
Institution:College of Chemistry and Environmental Engineering;Hubei Normal University;Huangshi;Hubei 435002;P.R China
Abstract:The interaction between Hg(Ⅱ) and Bovine Serum Albumin (BSA) was investigated by Fluorescence Spectroscopy in pH=7.15 buffer solution and ionic strength of 0.15mol/L sodium chloride solution.It was proved that static quenching exits between Hg(Ⅱ) and BSA. The results showed that the number of binding sites is n=2 and the combination constant is K=2.468×10^10L^2·mol^-2.
Keywords:Fluorescence Spectroscopy  Bovine Serum Albumin  Hg(Ⅱ)  
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