Detail publikace

Determination of chromium(VI) by anodic stripping voltammetry using a silver-plated glassy carbon electrode

STOJANOVIC, Z. KOUDELKOVÁ, Z. SEDLÁČKOVÁ, E. HYNEK, D. RICHTERA, L. ADAM, V.

Originální název

Determination of chromium(VI) by anodic stripping voltammetry using a silver-plated glassy carbon electrode

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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).

Klíčová slova

Differential pulse anodic stripping voltammetry (DP-ASV); hexavalent chromium (Cr(VI)); glassy carbon electrode

Autoři

STOJANOVIC, Z.; KOUDELKOVÁ, Z.; SEDLÁČKOVÁ, E.; HYNEK, D.; RICHTERA, L.; ADAM, V.

Vydáno

28. 6. 2018

ISSN

1759-9660

Periodikum

analytical Methods

Ročník

10

Číslo

24

Stát

Spojené království Velké Británie a Severního Irska

Strany od

2917

Strany do

2923

Strany počet

7

BibTex

@article{BUT149621,
  author="Zorica {Stojanovic} and Zuzana {Koudelková} and Eliška {Dostálová} and David {Hynek} and Lukáš {Richtera} and Vojtěch {Adam}",
  title="Determination of chromium(VI) by anodic stripping voltammetry using a silver-plated glassy carbon electrode",
  journal="analytical Methods",
  year="2018",
  volume="10",
  number="24",
  pages="2917--2923",
  doi="10.1039/c8ay01047a",
  issn="1759-9660"
}