Electrodes modified with bismuth, antimony and tin precursor compounds for electrochemical stripping analysis of trace metals (a short review)
ČlánekOtevřený přístuppeer-reviewedpublishedDatum publikování
2014
Autoři
Lezi, Nikolitsa
Economou, Anastasios
Barek, Jiří
Vedoucí práce
Oponent
Název časopisu
Název svazku
Vydavatel
Univerzita Pardubice
Abstrakt
Over the last decade, intensive research is being carried out towards the development of “green” electrochemical sensors. Bismuth, antimony and tin electrodes have been proposed as potential substitutes of mercury electrodes in electrochemical stripping analysis of trace
metals. The main advantage of these metals as electrode materials is their lower toxicity
compared to mercury. Among the different configuration of bismuth, antimony and tin
electrodes, one of the most attractive involves the modification of a support material with a
bismuth, antimony or tin precursor compound (oxide, hydroxide or sparingly soluble salt).
When the electrode is polarized to a sufficiently cathodic potential, the metal precursor is reduced to the respective metal which forms a thin “film” on the surface of the support material. The present article is an overview of the existing state–of–the–art in the field of bismuth, antimony and tin precursor–modified sensors. This review covers and critically discusses the various fabrication approaches (support materials, types of precursor compounds, modification approaches, precursor reduction methods) and also lists typical applications of these precursor–modified sensors to electrochemical stripping analysis of metals.
Rozsah stran
p. 9-20
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Zdrojový dokument
Sensing in Electroanalysis. (K. Kalcher, R. Metelka, I. Švancara, K. Vytřas; Eds.). 2013/2014, Volume 8.
Vydavatelská verze
Přístup k e-verzi
open access
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ISBN
978-80-7395-782-7 (print)
978-80-7395-783-4 (pdf)
978-80-7395-783-4 (pdf)
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Klíčová slova
bismuth, tin, antimony electrodes, screen–printed electrodes, carbon paste electrodes, precursor compounds, trace metals