[1]连惠婷,孙向英,徐金瑞.NO2-在维生素B12修饰电极上催化氧化[J].华侨大学学报(自然科学版),2001,22(4):366-370.[doi:10.3969/j.issn.1000-5013.2001.04.008]
　Lian Huiting,Sun Xiangying,Xu Jinrui.Catalytic Oxidation of Nitrite on Vitamin B12 Modified Electrode[J].Journal of Huaqiao University(Natural Science),2001,22(4):366-370.[doi:10.3969/j.issn.1000-5013.2001.04.008]
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NO2-在维生素B12修饰电极上催化氧化()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第22卷
期数:
2001年第4期
页码:
366-370
栏目:
出版日期:
2001-10-20

文章信息/Info

Title:
Catalytic Oxidation of Nitrite on Vitamin B12 Modified Electrode
文章编号:
1000-5013(2001)04-0366-05
作者:
连惠婷; 孙向英; 徐金瑞
华侨大学材料科学与工程学院; 华侨大学材料科学与工程学院 泉州362011; 泉州362011; 泉州362011
Author(s):
Lian Huiting;  Sun Xiangying;  Xu Jinrui
College of Mater. Sci. & Eng., Huaqiao Univ., 362011, Quanzhou
关键词:
维生素B12;  化学修饰电极;  电催化;  亚硝酸根
Keywords:
vitamin B 12;  chemically modified electrode;  electrocatalysis
分类号:
O646
DOI:
10.3969/j.issn.1000-5013.2001.04.008
摘要:
研究维生素 B12 (VB12 )修饰电极的制备,考察其对 NO-2 及共存离子的作用情况,对催化作用机理做初步探讨 .VB12 修饰电极在 0 .1mol.L-1KCl底液中对 NO-2 有良好的电化学催化作用和选择性,其催化电流在 NO-2 浓度为 0 .10~ 2 .0 0 mol.L-1范围内呈线性关系,NO-2 的浓度低至 0 .0 1mol.L-1仍可定量测定 .天然水中常见的离子不干扰测定,应用于雨水和湖水中 NO-2 的测定,回收率为 10 1%~ 10 3%.
Abstract:
The preparation of vitemin B 12 (VB 12 ) modified electrode is studied, its action on nitrite and coexisting ions is inspected, and the mechanism of its action on catalysis is initially investigated. VB 12 modified electrode shows good electrochemical catalysis and selectivity on nitrite in 0.1 mol·L -1 KCl supporting electrolyte. Its cataytic current exhibits a linear relation with nitrite concentration in the range of 0.10~2.00 mmol·L -1 . The lower limit of nitrite concentration for quantitative determination is 0.01 m mol·L -1 . The electrode can be applied to the determination of nifrite in rainwater and lake water with a recovery index of 101%~103%. Its determination will not be interfered by comon ions in natural water.

参考文献/References:

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[4] 孙向英, 刘斌, 徐金瑞. pH及电位敏感的聚苯胺膜用于药物释放 [J]. 华侨大学学报(自然科学版), 2000(1):24-27.doi:10.3969/j.issn.1000-5013.2000.01.006.
[5] 王宝兴, 董绍俊. 同多酸和杂多酸修饰微电极的电化学研究 [J]. 分析化学, 1992(9):1, 069-1, 027.
[6] 杨志, 王宅中. 磷酸钨杂多酸吡咯膜修饰电极的制备及其电化学性能研究 [J]. 化学传感器, 1998(2):59-64.
[7] 甘肃师范大学化学系《简明化学手册》编写组. 简明化学手册 [M]. 兰州:甘肃人民出版社, 1990.787-789.

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备注/Memo

备注/Memo:
福建省自然科学基金资助项目; 福建省科学技术委员会国际合作基金资助项目
更新日期/Last Update: 2014-03-23