LI Lin-na, JIANG Tao-qin, YANG Hui-zhong. Research on phosphate radical modified electrodes based on polyaniline / cobalt oxide[J]. 2015, 34(6): 64-66.
LI Lin-na, JIANG Tao-qin, YANG Hui-zhong. Research on phosphate radical modified electrodes based on polyaniline / cobalt oxide[J]. 2015, 34(6): 64-66. DOI: 10.13873/J.1000-9787(2015)06-0064-03.
基于聚苯胺/氧化钴的磷酸根修饰电极研究
摘要
研究了一种基于聚苯胺/氧化钴的磷酸根修饰电极。该电极以玻碳电极为基底电极
以掺杂钴离子的聚苯胺为电极敏感膜。通过实验比较
得到对磷酸二氢根响应较好的钴离子掺杂浓度。制成的电极能斯特响应线性范围在10-1
1
0-4mol/L
斜率为-27.1 m V/dec
检测下限为9.3×10-5mol/L;电极具有较短的响应时间
很好的稳定性和重复性
对磷酸根的检测具有一定的研究意义。
Abstract
Study on a phosphate radical ion-selective modified electrode based on polyaniline / cobalt oxide
which is based on glassy carbon electrode as basal electrode and the cobalt ions-doped polyaniline as sensitive film.Concentration of cobalt ions-doped
which responses well to dihydrogen phosphate ion is obtained by test comparison. The electrode has a linear response in the concentration range of 10- 1
10- 4mol / L
with a slope of- 27. 1 m V / dec and a detection limit of 9. 3 × 10- 5mol / L;the electrode has short response time
good stability and repeatability
the method has a certain significance for the detection of phosphate radical.
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