Polarographic and voltammetric study of genotoxic 2,7-dinitrofluoren-9-one and its determination using mercury electrodes

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Title:Polarographic and voltammetric study of genotoxic 2,7-dinitrofluoren-9-one and its determination using mercury electrodes
Creators:
Vyskočil, Vlastimil
Barek, Jiří
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 74, 11-12, pp. 1675-1696
Uncontrolled Keywords:Potentiostatic coulometry, Electroanalysis, Mercury electrodes, Polarography, Electroreduction, Voltammetry, Solid-phase extraction, Reduction mechanism, Nitro compounds, 2,7-Dinitrofluoren-9-one

Abstract

Electrochemical behavior of genotoxic 2,7-dinitrofluoren-9-one was investigated by DC polarography and DC tast polarography, both at a dropping mercury electrode, and by cyclic voltammetry at a hanging mercury drop electrode, in buffered aqueous-methanolic solutions. The number of exchanged electrons was determined by constant-potential coulometry at a mercury pool electrode. A possible mechanism of the electrochemical reduction has been proposed. Optimal conditions were found for the determination of 2,7-dinitrofluoren-9-one by DC tast polarography in the concentration range from 2 × 10<sup>–6</sup> to 1 × 10<sup>–5</sup> mol l<sup>–1</sup> and by differential pulse polarography (from 2 × 10<sup>–7</sup> to 1 × 10<sup>–5</sup> mol l<sup>–1</sup>), both at dropping mercury electrode, by differential pulse voltammetry (from 2 × 10<sup>–8</sup> to 1 × 10<sup>–5</sup> mol l<sup>–1</sup>) and by adsorptive stripping voltammetry (from 2 × 10<sup>–9</sup> to 1 × 10<sup>–7</sup> mol l<sup>–1</sup>), both at hanging mercury drop electrode. Practical applicability of the developed methods was verified on the direct determination of 2,7-dinitrofluoren-9-one in drinking water in 10<sup>–8</sup> mol l<sup>–1</sup> concentration range, and in drinking and river water (both in 10<sup>–9</sup> mol l<sup>–1</sup> concentration range) using preliminary separation and preconcentration by solid-phase extraction.

Title:Polarographic and voltammetric study of genotoxic 2,7-dinitrofluoren-9-one and its determination using mercury electrodes
Creators:
Vyskočil, Vlastimil
Barek, Jiří
Uncontrolled Keywords:Potentiostatic coulometry, Electroanalysis, Mercury electrodes, Polarography, Electroreduction, Voltammetry, Solid-phase extraction, Reduction mechanism, Nitro compounds, 2,7-Dinitrofluoren-9-one
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:74
Number:11-12
Page Range:pp. 1675-1696
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc2009108UNSPECIFIED
ID Code:4856
Item Type:Article
Deposited On:17 Feb 2010 16:45
Last Modified:17 Feb 2010 15:45

Citation

Vyskočil, Vlastimil; Barek, Jiří (2009) Polarographic and voltammetric study of genotoxic 2,7-dinitrofluoren-9-one and its determination using mercury electrodes. Collection of Czechoslovak Chemical Communications, 74 (11-12). pp. 1675-1696. ISSN 0010-0765

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