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dc.contributor.author |
Sopha, Hanna
|
|
dc.contributor.author |
Švancara, Ivan
|
|
dc.date.accessioned |
2020-05-20T10:45:42Z |
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dc.date.available |
2020-05-20T10:45:42Z |
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dc.date.issued |
2014 |
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dc.identifier.isbn |
978-80-7395-814-5 |
|
dc.identifier.issn |
1211-5541 |
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dc.identifier.uri |
https://hdl.handle.net/10195/75434 |
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dc.description.abstract |
A bismuth film electrode prepared ex-situ on a glassy carbon powder substrate
(BiF-GCPE) was applied to the determination of trinitrotoluene (TNT) in
combination with square-wave adsorptive stripping voltammetry. The
electroanalytical performance of the BiF-GCPE was studied in Britton-Robinson
buffers in the range of pH 4-9, revealing the most favourable stripping signals in
mild alkaline solutions (pH 9.0). For calibration, linear responses could be
obtained in the concentration range of 0.5-5.0 ppm TNT, when using a deposition
time of 60 s (R2 = 0.9999), and within 0.1-1.5 ppm TNT after deposition for 120
s (R2 = 0.9983). The LOD (3F) was estimated to be about 7 ppb (for deposition
time of 240 s), and the BiF-GCPE exhibited a very good repeatability (RSD = ±2.3
%; n = 10, ci = 0.5 ppm). Finally, possible determination of TNT in the presence
of nitrobenzene was also shown. |
en |
dc.format |
p. 7–22 |
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dc.language.iso |
en |
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dc.publisher |
University of Pardubice |
en |
dc.relation.ispartof |
Scientific papers of the University of Pardubice. Series A, Faculty of Chemical Technology. 20/2014 |
en |
dc.rights |
open access |
en |
dc.title |
Determination of trinitrotoluene at ex-situ prepared bismuth film electrode: An initial study |
en |
dc.type |
Article |
en |
dc.peerreviewed |
yes |
en |
dc.publicationstatus |
published |
en |
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