Applicability of Antimony Film Electrode in Anodic Stripping Voltammetry Combined with Sequential Injection Analysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F10%3A39882254" target="_blank" >RIV/00216275:25310/10:39882254 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Applicability of Antimony Film Electrode in Anodic Stripping Voltammetry Combined with Sequential Injection Analysis

Popis výsledku v původním jazyce

The possibilities to employ antimony-film plated glassy carbon electrode (SbF-GCE) in anodic stripping voltammetry combined with sequential injection analysis (ASV-SIA) were examined and tested for the determination of Pb(II) and Cd(II) selected as the model ions. It has been found that SbF-GCE can be operated at the low ?g L-1 concentration level via the in-situ preparation - deposition from a plating solution of 0.5 M HCl, mixed with 0.75 mg L-1 Sb(III), and at a potential of ?1.5 V vs. Ag/AgCl. The same solution could then be used for pre-concentration and stripping, when the reproducibility of the respective signals was characterized by means of the RSD ? 2.8%, and the detection limit (3?) of about 1.2 ?g L-1 Pb(II) and 1.4 ?g L-1 Cd(II). Furthermore, as found, the presence of weakly complexing halide salts, KCl or KBr, could further improve the overall signal-to-noise ratio, whereas the addition of KSCN into the solution(s) offered the possibility to detect some additional ions.

Název v anglickém jazyce

Applicability of Antimony Film Electrode in Anodic Stripping Voltammetry Combined with Sequential Injection Analysis

Popis výsledku anglicky

The possibilities to employ antimony-film plated glassy carbon electrode (SbF-GCE) in anodic stripping voltammetry combined with sequential injection analysis (ASV-SIA) were examined and tested for the determination of Pb(II) and Cd(II) selected as the model ions. It has been found that SbF-GCE can be operated at the low ?g L-1 concentration level via the in-situ preparation - deposition from a plating solution of 0.5 M HCl, mixed with 0.75 mg L-1 Sb(III), and at a potential of ?1.5 V vs. Ag/AgCl. The same solution could then be used for pre-concentration and stripping, when the reproducibility of the respective signals was characterized by means of the RSD ? 2.8%, and the detection limit (3?) of about 1.2 ?g L-1 Pb(II) and 1.4 ?g L-1 Cd(II). Furthermore, as found, the presence of weakly complexing halide salts, KCl or KBr, could further improve the overall signal-to-noise ratio, whereas the addition of KSCN into the solution(s) offered the possibility to detect some additional ions.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CG - Elektrochemie

OECD FORD obor

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Projekt

<a href="/cs/project/LC06035" target="_blank" >LC06035: Centrum biofyzikální chemie, bioelektrochemie a bioanalýzy. Nové nástroje pro genomiku, proteomiku a biomedicínu.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Scientific Papers of the University of Pardubice, Series A, Faculty of Chemical Technology

ISSN

1211-5541

e-ISSN

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Svazek periodika

16

Číslo periodika v rámci svazku

prosinec

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

13

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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