Issue 6, 2005
From the journal:

Analyst

Sensitive stripping voltammetry of heavy metals by using a composite sensor based on a built-in bismuth precursor

M. T. Castañeda,†a   B. Pérez,a   M. Pumera,a   M. del Valle,a   A. Merkoçi*a  and  S. Alegreta  

* Corresponding authors

a Grup de Sensors i Biosensors, Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Catalonia, Spain
E-mail: arben.merkoci@uab.es
Fax: 34-93581 2379
Tel: 34-935811976

Abstract

A new graphite–epoxy composite electrode (GECE) containing Bi(NO3)3 as a built-in bismuth precursor for simultaneous and individual anodic stripping analysis of heavy trace metals like lead and cadmium is reported. The developed Bi(NO3)3-GECE is compatible with bismuth film electrodes reported previously including the composite electrodes (Bi-GECE) recently reported by our group. Bi(NO3)3-GECE displays the ability for the detection of both individual and simultaneous determination of heavy trace metals and exhibits well defined, reproducible and sharp stripping signals. The sensitive response is combined with the minimal toxicity of Bi(NO3)3. This novel sensor would be an appropriate alternative tool to sensors using bismuth in solution during their utilization in environmental quality monitoring as well as other applications.

Graphical abstract: Sensitive stripping voltammetry of heavy metals by using a composite sensor based on a built-in bismuth precursor

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Article information

DOI
https://doi.org/10.1039/B502486M
Article type
Paper
Submitted
17 Feb 2005
Accepted
12 Apr 2005
First published
27 Apr 2005

Analyst, 2005,130, 971-976

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Sensitive stripping voltammetry of heavy metals by using a composite sensor based on a built-in bismuth precursor

M. T. Castañeda, B. Pérez, M. Pumera, M. del Valle, A. Merkoçi and S. Alegret, Analyst, 2005, 130, 971 DOI: 10.1039/B502486M

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