A method to probe electrochemically active material state in portable sensor applications

被引：15

作者：

Yunus, S. ^{[1
]}

Attout, A. ^{[1
]}

Vanlancker, G. ^{[1
]}

Bertrand, P. ^{[1
]}

Ruth, N. ^{[2
]}

Galleni, M. ^{[2
]}

机构：

[1] Catholic Univ Louvain, Inst Condensed Matter & Nanosci, Bio & Soft Matter Lab, B-1348 Louvain, Belgium

[2] Univ Liege, Inst Chem, Ctr Prot Engn, B-4000 Liege, Belgium

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2011年 / 156卷 / 01期

关键词：

Portable electrochemical sensor; Potentiometry; Impedimetry; Polyaniline; pH sensor; Antibiotic sensor; AUTOCATALYTIC POLYMERIZATION; ELECTROLESS DEPOSITION; POLYANILINE FILM; PH; IMPEDANCE;

D O I：

10.1016/j.snb.2011.03.070

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new method allowing the simultaneous and automatic determination of potentiometric and impedimetric characteristics of an electrochemical cell is presented. This method is based on a computerized or micro-controlled feedback loop that conditions a potentiostat input signal as a function of its output signal. The embedding of this method in a portable sensor prototype is used to evaluate the versatility and usefulness of this new approach. As this method is active, it is used both for the electrochemical preparation of polyaniline coated electrodes and for their subsequent evaluation in pH-linked sensors such as an antibiotic sensor. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：35 / 42

页数：8

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