摘要
采用电化学聚合法制备了聚苯胺修饰的铂电极(PAN/Pt),并用循环伏安法(CV)研究了该电极对叶酸(FA)的电催化氧化性能。结果显示:FA在裸铂电极上的直接电化学氧化十分迟缓,无氧化峰出现,而在PAN/Pt修饰电极上0.561V处出现氧化峰,表明此电极对FA有很良好的电催化作用。另外,氧化峰电流与叶酸浓度在1×10-12 mol/L^1×10-6 mol/L范围内呈线性关系,检测限为1×10-11 mol/L。利用该电极测定市售叶酸片中的叶酸,获得令人满意的结果。
The polyaniline modified Pt electrode（PAN/Pt）was prepared by electrochemical polymerization,and the electrocatalytie oxidation for the folic aeid（FA）was studied by using cyclic voltammetry（CV）. The results showed that FA was oxidated very slow and had no oxidation peak in bare platinum electrode,while on the PAN/Pt electrode, the oxidation peak appeared at the 0. 561V. It was showed that the PAN/Pt modified electrode had a very good electrocatalytic effect for FA. In addition,the electrodes showed a good linear current response in the range from 1 X 10-1Zmol/L to 1 X 10-Gmol/ L with a detection limit of 1 X 10 11mol/L. This electrode has been used for determining FA with satisfactory reslllts
出处
《化工新型材料》
CAS
CSCD
北大核心
2014年第4期170-172,共3页
New Chemical Materials
基金
河西学院西部资源环境化学重点实验室基金资助项目(XZ0706)
关键词
聚苯胺
叶酸
电催化
循环伏安法
polyaniline, folic acid, electrocatalysis, cyclic voltammetry
