Simultaneous voltammetry of paracetamol, ascorbic acid, and codeine on a palladium-plated aluminum electrode: oxidation pathway and kinetics

被引：33

作者：

Pournaghi-Azar, Mohammad Hossein ^{[1
,2
]}

Kheradmandi, Shahla ^{[1
]}

Saadatirad, Afsaneh ^{[1
]}

机构：

[1] Univ Tabriz, Fac Chem, Electroanalyt Chem Lab, Tabriz, Iran

[2] Univ Tabriz, Ctr Excellence New Mat & Clean Chem, Tabriz, Iran

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2010年 / 14卷 / 09期

关键词：

Aluminum electrode; Paracetamol; Ascorbic acid; Codeine; Modified electrode; GLASSY-CARBON ELECTRODE; RUTHENIUM AD-ATOMS; ELECTROCATALYTIC OXIDATION; FORMIC-ACID; AMPEROMETRIC DETERMINATION; PASTE ELECTRODE; OXALIC-ACID; PLATINUM; SURFACE; FORMALDEHYDE;

D O I：

10.1007/s10008-010-1011-2

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In the present work, the aluminum electrode surface was modified with a thin layer of palladium by dipping its polished surface in a 25% ammonia solution of PdCl(2). The electrocatalytic ability of the modified electrode towards the paracetamol (PCT), ascorbic acid (AA), and codeine (CO) oxidation was investigated using cyclic voltammetry, chronoamperometry. The number of electrons for rate-determining step and diffusion coefficient of PCT, AA, and CO were determined. The electro-oxidation pathway and kinetics, including transfer coefficient alpha and diffusion coefficient D, are estimated. The results indicated that the simultaneous voltammetry of the three compounds was possible in a mixture solution.

引用

页码：1689 / 1695

页数：7

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