Disposable screen-printed electrodes with in-built bismuth precursors for lead(II) determination by anodic stripping voltammetry
ČlánekOtevřený přístuppeer-reviewedpublishedDatum publikování
2010
Vedoucí práce
Oponent
Název časopisu
Název svazku
Vydavatel
Univerzita Pardubice
Abstrakt
The utility of disposable screen-printed electrodes modified with three
bismuth-precursor compounds (bismuth titanate, bismuth oxide and bismuth
aluminate) was assesed for the determination of Pb(II) by anodic stripping
voltammetry. It was found that, in principle, both bismuth oxide and bismuth
aluminate could be sucessfully used as bismuth precursors but the latter yielded
higher sensitivity for the detection of Pb(II). The instrumental parametrs for Pb(II)
determination (deposition time and potential and stripping waveform mode) were
investigated and the effect of different co-existing metals was studied. Using the
selected conditions, the limit of detection for Pb(II) was 0.6 μg l−1 and the % relative
standard deviation at the 20 μg l−1 level was 5.2 % (n=8). The sensors were
succcesfully utilised for the determination of Pb(II) in tap-water.
Rozsah stran
p. 97-107
ISSN
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Projekt
Zdrojový dokument
Sensing in electroanalysis. K. Vytřas, K. Kalcher, I. Švancara (Eds.). 2010, Volume 5.
Vydavatelská verze
Přístup k e-verzi
open access
Název akce
ISBN
978-80-7395-348-5 (printed)
978-80-7395-349-2 (on-line)
978-80-7395-349-2 (on-line)
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Klíčová slova
screen-printed electrodes, bismuth-precursors modified electrodes, anodic stripping voltammetry, lead(II), determination