1-(2-吡啶偶氮)-2-萘酚修饰玻碳电极的制备及其电化学行为  

Fabrication of 1-(2-pyridylazo)-2-naphthol modified electrode and its electrochemical behavior

作　　者：黎中良[1] 罗济文[1] 刘国聪[1] 杨叶挺[1] 吕集尔[1] 韦庆敏[1] 

机构地区：[1]玉林师范学院化学与生物系,广西玉林537000

出　　处：《化学试剂》2007年第1期31-33,共3页Chemical Reagents

基　　金：广西教育厅科研基金资助项目(200507218)

摘　　要：研究了将1-（2-吡啶偶氮）-2-萘酚（PAN）固定于玻碳电极上的方法。将玻碳电极进行抛光处理并经超声波清洗后,于磷酸盐缓冲溶液中用循环伏安法扫描,可将PAN固定于玻碳电极上,制得具有良好电化学活性且较为稳定的修饰电极。制备好的电极在磷酸盐缓冲溶液中的循环伏安曲线有一对氧化还原峰。峰电流随扫描速度的增大而增大,峰电位随pH的升高而减小,在pH 1.0~8.0间有良好的线性关系。A method for immobilizing 1-（ 2-pyridylazo）-2-naphthol （PAN） on glassy carbon electrode （GCE） was studied. PAN can be deposited on a pretreated glassy carbon electrode by repeated potential scanning in phosphate buffer solution containing PAN. High acidity is favorable for the deposition. Vohammngrams of the modified electrode in phosphate buffer solution showed a pair of well developed redox peaks, which shifted toward the negative direction as the solution pH increased with the linear relationship existing in a pH range of 2.0 - 8.0.

关 键 词：1-(2-吡啶偶氮)-2-萘酚 化学修饰电极 PH传感器 

分 类 号：O646[理学—物理化学]