血红蛋白在纳米金修饰电极上的电化学研究  

Electrochemistry behavior study of hemoglabin at gold nanoparticles modified glassy carbon electrodes

作　　者：张敏 程发良[1] 蔡志泉[2] 姚海军[1] 

机构地区：[1]东莞理工学院生物传感器研究中心,广东东莞523106 [2]东莞理工学院城市学院,广东东莞523106

出　　处：《化学研究与应用》2008年第7期872-875,共4页Chemical Research and Application

基　　金：国家自然科学基金项目(20375008,20475001)资助;广东省科技攻关项目(2004B33301024,2005B10301041,2006B12401011)资助;广东省自然科学基金项目(06108856)资助

摘　　要：A carbon glassy electrode modified by gold nanoparticles was prepared.The elect-rochemical behavior of hemoglobin on the modified electrode was investigated and it was found that the modified electrode has an obvious electrocatalytic effects on the hemoglobin.The electrode shows a linear range of ipa(μA)=0.0981+2.7169c for hemoglobin in a HAcNaAc buffer medium of pH 4.6.The relative standard deviation for eight determinations of 1×10-5mol/L hemoglobin is 0.85 %.The modified electrode shows excellent stability and reproducibility.A carbon glassy electrode modified by gold nanoparticles was prepared. The elect- rochemical behavior of hemoglobin on the modified electrode was investigated and it was found that the modified electrode has an obvious electrocatalytic effects on the hemoglobin. The electrode shows a linear range of ipa（μA） =0. 0981 ＋2.7169c for hemoglobin in a HAc-NaAc buffer medium of pH 4. 6. The relative standard deviation for eight determinations of 1×10^5mol/L hemoglobin is 0. 85 %. The modified electrode shows excellent stability and reproducibility.

关 键 词：纳米金 牛血红蛋白 化学修饰电极 

分 类 号：O657.1[理学—分析化学]