Determination of chromium(VI) by anodic stripping voltammetry using a silver-plated glassy carbon electrode
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F18%3A43913882" target="_blank" >RIV/62156489:43210/18:43913882 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216305:26620/18:PU128855
Výsledek na webu
<a href="http://dx.doi.org/10.1039/C8AY01047A" target="_blank" >http://dx.doi.org/10.1039/C8AY01047A</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c8ay01047a" target="_blank" >10.1039/c8ay01047a</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Determination of chromium(VI) by anodic stripping voltammetry using a silver-plated glassy carbon electrode
Popis výsledku v původním jazyce
In this work, differential pulse anodic stripping voltammetry (DP-ASV) for the determination of trace amounts of hexavalent chromium (Cr(vi)) at a silver plated glassy carbon electrode (Ag plated-GCE) is described in detail. A Ag film was prepared by in situ plating of silver on the glassy carbon electrode surface. Several solution conditions and instrumental parameters influencing the electroanalytical response of the Ag plated-GCE were examined and optimized for the determination of Cr(vi). Under the optimized conditions, the calibration curve obtained in CH3COOH/NH3 (aq) medium at pH 5.9 was linear over the wide concentration range of 0.35-40 M Cr(vi). The present method shows a low limit of detection of 0.10 mu M. After evaluation of effects from possible interferences, the proposed method was successfully applied for the quantification of Cr(vi) in real water samples, with satisfactory recovery (97-105%). This method is useful for the determination of chromium in drinking water and achieves sensitivity capable of detecting the limits set by the World Health Organization (WHO).
Název v anglickém jazyce
Determination of chromium(VI) by anodic stripping voltammetry using a silver-plated glassy carbon electrode
Popis výsledku anglicky
In this work, differential pulse anodic stripping voltammetry (DP-ASV) for the determination of trace amounts of hexavalent chromium (Cr(vi)) at a silver plated glassy carbon electrode (Ag plated-GCE) is described in detail. A Ag film was prepared by in situ plating of silver on the glassy carbon electrode surface. Several solution conditions and instrumental parameters influencing the electroanalytical response of the Ag plated-GCE were examined and optimized for the determination of Cr(vi). Under the optimized conditions, the calibration curve obtained in CH3COOH/NH3 (aq) medium at pH 5.9 was linear over the wide concentration range of 0.35-40 M Cr(vi). The present method shows a low limit of detection of 0.10 mu M. After evaluation of effects from possible interferences, the proposed method was successfully applied for the quantification of Cr(vi) in real water samples, with satisfactory recovery (97-105%). This method is useful for the determination of chromium in drinking water and achieves sensitivity capable of detecting the limits set by the World Health Organization (WHO).
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10406 - Analytical chemistry
Návaznosti výsledku
Projekt
<a href="/cs/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2018
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Analytical Methods
ISSN
1759-9660
e-ISSN
—
Svazek periodika
10
Číslo periodika v rámci svazku
24
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
7
Strana od-do
2917-2923
Kód UT WoS článku
000436090400015
EID výsledku v databázi Scopus
2-s2.0-85048998739