Digitální knihovnaUPCE
 

Determination of trinitrotoluene at ex-situ prepared bismuth film electrode: An initial study

ČlánekOtevřený přístuppeer-reviewedpublished
Náhled

Datum publikování

2014

Vedoucí práce

Oponent

Název časopisu

Název svazku

Vydavatel

University of Pardubice

Abstrakt

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.

Rozsah stran

p. 7–22

ISSN

1211-5541

Trvalý odkaz na tento záznam

Projekt

Zdrojový dokument

Scientific papers of the University of Pardubice. Series A, Faculty of Chemical Technology. 20/2014

Vydavatelská verze

Přístup k e-verzi

open access

Název akce

ISBN

978-80-7395-814-5

Studijní obor

Studijní program

Signatura tištěné verze

Umístění tištěné verze

Přístup k tištěné verzi

Klíčová slova

Endorsement

Review

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