掺磷钼杂多酸聚吡咯修饰铂微电极催化氧化测定多巴胺  被引量:1

Electrocatalytic Determination of Dopamine by Polypyrrole Doped with Phosphomolybdic Acid Film

在线阅读下载全文

作  者:莫蔚明[1] 李舒婷[1] 康彩艳[1] 

机构地区:[1]广西师范大学

出  处:《广西科学》1997年第3期233-234,240,共3页Guangxi Sciences

摘  要:对掺磷钼杂多酸聚吡咯电极的聚合、伏安行为,及其对多巴胺的电催化效应进行了研究。该膜电极性能稳定,多巴胺浓度在5×10-5mol/L~10-2mol/L成线性关系,检测限为8.0×10-6mol/L,用于多巴胺针剂中多巴胺(DA)的含量测定获得满意的结果。A polypyrrole doped with phosphomolybdic film modified electrode was made by electrochemically deposition in acidic pyrrole solution containing phosphomolybdic acid.The electrocatalytic oxidation of dopamine on the electrode was found and was further examined.The oxidation peak potential shifts negatively about 120 mv.The modified electrode can be used for determination of dopamine in the concentration range of 5×10 -5 -10 -2 mol/L with detection limit 8 0×10 -6 mol/L.This method has been successfully appilied to the analysis of dopamine in injection.

关 键 词:化学修饰电极 多巴胺 磷钼杂多酸 神经递质 测定 

分 类 号:Q42[生物学—神经生物学] R338[生物学—生理学]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象