Antimony Powder-Modified Carbon Paste Electrodes for Electrochemical Stripping Determination of Trace Heavy Metals

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F11%3A39892631" target="_blank" >RIV/00216275:25310/11:39892631 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.electacta.2011.05.048" target="_blank" >http://dx.doi.org/10.1016/j.electacta.2011.05.048</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.electacta.2011.05.048" target="_blank" >10.1016/j.electacta.2011.05.048</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Antimony Powder-Modified Carbon Paste Electrodes for Electrochemical Stripping Determination of Trace Heavy Metals

Popis výsledku v původním jazyce

A new type of the antimony electrode based on a carbon paste bulk-modified with antimony powder (Sb-CPE) is presented for the determination of cadmium(II) and lead(II) ions at the ug L-1 concentration level, when using SWASV or stripping chronopotentiometric protocol. Key-operational parameters, including the amount of antimony powder in the carbon paste mixture, effect of the deposition potential and deposition time, were optimized and electroanalytical performance of the Sb-CPE in nondeaerated solution of 0.01 M hydrochloric acid (pH 2) was compared with related bismuth powder-modified carbon paste electrode (Bi-CPE) and with in situ prepared antimony film carbon paste electrode (SbF-CPE). Favorable limits of detection were achieved; namely: 1.4 ug L?1 for Cd(II) and 0.9 ug L?1 for Pb(II). The applicability of the new electrode was demonstrated on the analysis of tap water. The Sb-CPE was preliminary tested also under chronopotentiometric stripping mode in deoxygenated solutions.

Název v anglickém jazyce

Antimony Powder-Modified Carbon Paste Electrodes for Electrochemical Stripping Determination of Trace Heavy Metals

Popis výsledku anglicky

A new type of the antimony electrode based on a carbon paste bulk-modified with antimony powder (Sb-CPE) is presented for the determination of cadmium(II) and lead(II) ions at the ug L-1 concentration level, when using SWASV or stripping chronopotentiometric protocol. Key-operational parameters, including the amount of antimony powder in the carbon paste mixture, effect of the deposition potential and deposition time, were optimized and electroanalytical performance of the Sb-CPE in nondeaerated solution of 0.01 M hydrochloric acid (pH 2) was compared with related bismuth powder-modified carbon paste electrode (Bi-CPE) and with in situ prepared antimony film carbon paste electrode (SbF-CPE). Favorable limits of detection were achieved; namely: 1.4 ug L?1 for Cd(II) and 0.9 ug L?1 for Pb(II). The applicability of the new electrode was demonstrated on the analysis of tap water. The Sb-CPE was preliminary tested also under chronopotentiometric stripping mode in deoxygenated solutions.

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

2011

Kód důvěrnosti údajů

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

Název periodika

Electrochimica Acta

ISSN

0013-4686

e-ISSN

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Svazek periodika

56

Číslo periodika v rámci svazku

19

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

6673-6677

Kód UT WoS článku

000293438600014

EID výsledku v databázi Scopus

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