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.
出处
《化学研究与应用》
CAS
CSCD
北大核心
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
关键词
纳米金
牛血红蛋白
化学修饰电极
gold nanoparticles
hemoglobin
chemically modified electrode
