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

被引：53
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
收藏
页码：539 / 543
页数：5
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