Polarographic and voltametric determination of carcinogenic nitrobiphenyls at a static and hanging mercury drop electrode

Radek Štěpán, Jiří Barek, Viktor Mejstřík, Josino C. Moreira, Jiří Zima

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A number of environmentally important substances exhibit genotoxic or ecotoxic properties leading to the need for sensitive and selective methods for their determination. Differential pulse polarography (DPP) and DC last polarography (DCTP) at a static mercury drop electrode (SMDE) were used for the determination of trace amounts of carcinogenic nitrobiphenyls, namely 2-nitrobiphenyl (2-NBP), 3-nitrobiphenyl (3-NBP), and 4-nitrobiphenyl (4-NBP) within the concentration range from 2·10-7 to 1·10 -4 mol·l-1 for DC last polarography and from 2·10-8 to 1·10-4 mol·l-1 for DPP using a Britton-Robinson buffer - methanol (1:1) mixture with resulting pH 12 as a base electrolyte. Differential pulse voltammetry (DPV) at a hanging mercury drop electrode (HMDE) is applicable within the concentration range from 2·10-8 to 1·10-5 mol·l-1. The above mentioned techniques were used for the analysis of mixtures of carcinogenic nitrobiphenyls.

Original languageEnglish
Pages (from-to)2753-2770
Number of pages18
JournalAnalytical Letters
Volume37
Issue number13
DOIs
Publication statusPublished - 15 Nov 2004
Externally publishedYes

Fingerprint

Polarography
Polarographic analysis
Mercury
Electrodes
Voltammetry
Electrolytes
Methanol
Buffers

Keywords

  • 2-Nitrobiphenyl
  • 3-Nitrobiphenyl
  • 4-Nitrobiphenyl
  • DC last polarography
  • Differential pulse polarography
  • Differential pulse voltammetry
  • Hanging mercury drop electrode
  • Static mercury drop electrode

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Spectroscopy
  • Clinical Biochemistry
  • Biochemistry, medical
  • Electrochemistry

Cite this

Polarographic and voltametric determination of carcinogenic nitrobiphenyls at a static and hanging mercury drop electrode. / Štěpán, Radek; Barek, Jiří; Mejstřík, Viktor; Moreira, Josino C.; Zima, Jiří.

In: Analytical Letters, Vol. 37, No. 13, 15.11.2004, p. 2753-2770.

Research output: Contribution to journalArticle

Štěpán, Radek ; Barek, Jiří ; Mejstřík, Viktor ; Moreira, Josino C. ; Zima, Jiří. / Polarographic and voltametric determination of carcinogenic nitrobiphenyls at a static and hanging mercury drop electrode. In: Analytical Letters. 2004 ; Vol. 37, No. 13. pp. 2753-2770.
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