摘要
聚溴酚蓝膜修饰电极对儿茶酚的电极反应具有良好的催化作用,儿茶酚在修饰电极上的氧化电位比在裸玻碳电极上负移了120mV,且灵敏度大为提高。该电极具有良好的稳定性,在0.5mol/LH2SO4中,用该修饰电极测定儿茶酚的线性范围为20～2000μmol/L(r=0.9996)。
The electrochemical characteristics of poly(bromophenol blue)film electrode on the electrocatalytˉic oxidation of catechol have been investigated.It was found that the modified electrode had a good catalytic activity for electrode reaction of catechol.As compared to bare glassy carbon electrode,a negative shift of120mV for the oxidation potential occurred at the modified electrode for catechol.The poly(bromophenol blue)filmelectrode was stable and could be used as a sensor for determining catechol.In0.5mol/L sulfuric acid solution,the linear range of catechol was20-2000μmol/L(r=0.9996).
出处
《分析测试学报》
CAS
CSCD
北大核心
2005年第3期71-73,共3页
Journal of Instrumental Analysis
基金
福建省科技厅重点资助项目(2003I003)
关键词
溴酚蓝
修饰电极
电催化反应
儿茶酚
Bromophenol blue
Modified electrode
Electrocatalytic reaction
Catechol
