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

M. T. Castañeda, B. Pérez, Martin Pumera, M. Del Valle, A. Merkoçi, S. Alegret

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

A new graphite-epoxy composite electrode (GECE) containing Bi(NO 3 ) 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(NO 3 ) 3 -GECE is compatible with bismuth film electrodes reported previously including the composite electrodes (Bi-GECE) recently reported by our group. Bi(NO 3 ) 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(NO 3 ) 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.

Original languageEnglish
Pages (from-to)971-976
Number of pages6
JournalAnalyst
Volume130
Issue number6
DOIs
Publication statusPublished - 2005 Jun 1

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Bismuth
bismuth
Voltammetry
Heavy Metals
Heavy metals
Graphite epoxy composites
Electrodes
electrode
Graphite
heavy metal
sensor
graphite
Sensors
Composite materials
trace metal
Environmental Monitoring
Cadmium
environmental quality
Toxicity
cadmium

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy
  • Electrochemistry

Cite this

Castañeda, M. T. ; Pérez, B. ; Pumera, Martin ; Del Valle, M. ; Merkoçi, A. ; Alegret, S. / Sensitive stripping voltammetry of heavy metals by using a composite sensor based on a built-in bismuth precursor. In: Analyst. 2005 ; Vol. 130, No. 6. pp. 971-976.
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Sensitive stripping voltammetry of heavy metals by using a composite sensor based on a built-in bismuth precursor. / Castañeda, M. T.; Pérez, B.; Pumera, Martin; Del Valle, M.; Merkoçi, A.; Alegret, S.

In: Analyst, Vol. 130, No. 6, 01.06.2005, p. 971-976.

Research output: Contribution to journalArticle

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