A simple method for fabrication of sole composition nickel hexacyanoferrate modified electrode and its application

被引：50

作者：

Chen, Wei ^{[1
,2
]}

Tang, Jian ^{[1
]}

Cheng, Han-Jun ^{[1
]}

Xia, Xing-Hua ^{[1
]}

机构：

[1] Nanjing Univ, Sch Chem & Chem Engn, Key Lab Analyt Chem Life Sci, Nanjing 210093, Jiangsu, Peoples R China

[2] Fujian Med Univ, Sch Pharm, Dept Pharmaceut Anal, Fuzhou 350004, Peoples R China

来源：

TALANTA | 2009年 / 80卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Nickel hexacyanoferrate; Chemical deposition; Solo composition; Stability; Sodium ion sensing; Electrocatalysis; Electrochemical analysis; FILM; CATION;

D O I：

10.1016/j.talanta.2009.07.022

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Nickel hexacyanoferrate film modified gold electrode was prepared by a simple chemical deposition procedure from a fresh prepared solution containing ferricyanide, Ni2+, and sodium nitrate. The resultant films have solo composition and are significantly stable as compared to the electrochemically deposited NiHCF films. For different concentrations of Na+ in the solution, the formal potential values of NiHCF shift according to the Nernstian behavior with a slope of 48 mV in the range of 10(-4) to 1.0 M. The NiHCF film was also used for the electrocatalytic oxidation of ascorbic acid. The anodic peak current observed in cyclic voltammetry increased with the ascorbic acid concentration. At a fixed potential under hydrodynamic conditions, the calibration plot was linear over the ascorbic acid concentration range 0.1-12 mM. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：539 / 543

页数：5

共 20 条

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