Zobrazit minimální záznam
dc.contributor.author |
Somerset, Vernon |
|
dc.contributor.author |
Silwana, Bongiwe |
|
dc.contributor.author |
Horst, Charlton van der |
|
dc.contributor.author |
Iwuoha, Emmanuel |
|
dc.date.accessioned |
2014-10-20T12:51:14Z |
|
dc.date.available |
2014-10-20T12:51:14Z |
|
dc.date.issued |
2014 |
|
dc.identifier.isbn |
978-80-7395-782-7 (print) |
|
dc.identifier.isbn |
978-80-7395-783-4 (pdf) |
|
dc.identifier.uri |
http://hdl.handle.net/10195/58394 |
|
dc.description.abstract |
A modified carbon paste electrodes (MCPE) have been prepared in this study as an alternative “mercury-free” electrochemical sensor for the determination of Pb2+ and Cd2+ metal ions in aqueous solutions. CPE containing a conducting copolymer of polyaniline-co-poly(2,2'-
dithiodianiline) (PANI-co-PDTDA) was used as a modified substrate transducer to achieve enhanced selectivity in stripping voltammetric analysis. The experimental conditions optimised included the supporting electrolyte pH, deposition potential (Ed) and time (td), set at −0.6 V vs.
ref. for Pb2+ and −0.8 V for Cd2+; both kept for td = 120 s. The results with the CPE/PANI-co-
PDTDA sensor have revealed the linear range within the range of 0.15 – 0.5 μg/L for Pb2+ and
the same interval for Cd2+. Finally, the electrode of interest, CPE/PANI-co-PDTDA, can be
characterised by the LODs of 0.03 and 0.09 μg/L for Pb2+ and Cd2+ respectively. |
eng |
dc.format |
p. 143-154 |
eng |
dc.language.iso |
eng |
|
dc.publisher |
Univerzita Pardubice |
|
dc.relation.ispartof |
Sensing in Electroanalysis. (K. Kalcher, R. Metelka, I. Švancara, K. Vytřas; Eds.). 2013/2014, Volume 8. |
eng |
dc.rights |
open access |
eng |
dc.subject |
carbon paste electrode |
eng |
dc.subject |
PANI-co-PDTDA |
eng |
dc.subject |
differential pulse anodic stripping voltammetry |
eng |
dc.subject |
lead and cadmium |
eng |
dc.subject |
determination |
eng |
dc.title |
Construction and evaluation of a carbon paste electrode modified with polyaniline-co-poly(dithiodianiline) for enhanced stripping voltammetric determination of metal ions |
eng |
dc.type |
Article |
|
dc.peerreviewed |
yes |
eng |
dc.publicationstatus |
published |
eng |
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