Voltammetric determination of 4-nitrophenol and 5-nitrobenzimidazole using different types of silver solid amalgam electrodes - a comparative study

Dana Deýlová, Bogdan Yosypchuk, Vlastimil Vyskočil, Jiří Barek

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The voltammetric behavior of two genotoxic nitro compounds (4-nitrophenol and 5-nitrobenzimidazole) has been investigated using direct current voltammetry (DCV) and differential pulse voltammetry (DPV) at a polished silver solid amalgam electrode (p-AgSAE), a mercury meniscus modified silver solid amalgam electrode (m-AgSAE), and a mercury film modified silver solid amalgam electrode (MF-AgSAE). The optimum conditions have been evaluated for their determination in Britton-Robinson buffer solutions. The limit of quantification (LQ) for 5-nitrobenzimidazole at p-AgSAE was 0.77μmolL-1 (DCV) and 0.47μmolL-1 (DPV), at m-AgSAE it was 0.32μmolL-1 (DCV) and 0.16μmolL-1 (DPV), and at MF-AgSAE it was 0.97μmolL-1 (DCV) and 0.70μmolL-1 (DPV). For 4-nitrophenol at p-AgSAE, LQ was 0.37μmolL-1 (DCV) and 0.32μmolL-1 (DPV), at m-AgSAE it was 0.14μmolL-1 (DCV) and 0.1μmolL-1 (DPV), and at MF-AgSAE, it was 0.87μmolL-1 (DCV) and 0.37μmolL-1 (DPV). Thorough comparative studies have shown that m-AgSAE is the best sensor for voltammetric determination of the two model genotoxic compounds because it gives the lowest LQ, is easier to prepare, and its surface can be easily renewed both chemically (by new amalgamation) and/or electrochemically (by imposition of cleaning pulses). The practical applicability of the newly developed methods was verified on model samples of drinking water.

Original languageEnglish
Pages (from-to)1548-1555
Number of pages8
JournalElectroanalysis
Volume23
Issue number7
DOIs
Publication statusPublished - 1 Jul 2011
Externally publishedYes

Fingerprint

Mercury amalgams
Voltammetry
Silver
Electrodes
Mercury (metal)
4-nitrophenol
Nitrophenols
Mercury
Nitro Compounds
Potable water
Drinking Water

Keywords

  • 4-Nitrophenol
  • 5-Nitrobenzimidazole
  • Mercury film modified silver solid amalgam electrode
  • Mercury meniscus modified silver solid amalgam electrode
  • Polished silver solid amalgam electrode
  • Voltammetry

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry

Cite this

Voltammetric determination of 4-nitrophenol and 5-nitrobenzimidazole using different types of silver solid amalgam electrodes - a comparative study. / Deýlová, Dana; Yosypchuk, Bogdan; Vyskočil, Vlastimil; Barek, Jiří.

In: Electroanalysis, Vol. 23, No. 7, 01.07.2011, p. 1548-1555.

Research output: Contribution to journalArticle

@article{c66d230d22cb467398dc277a41f03ef9,
title = "Voltammetric determination of 4-nitrophenol and 5-nitrobenzimidazole using different types of silver solid amalgam electrodes - a comparative study",
abstract = "The voltammetric behavior of two genotoxic nitro compounds (4-nitrophenol and 5-nitrobenzimidazole) has been investigated using direct current voltammetry (DCV) and differential pulse voltammetry (DPV) at a polished silver solid amalgam electrode (p-AgSAE), a mercury meniscus modified silver solid amalgam electrode (m-AgSAE), and a mercury film modified silver solid amalgam electrode (MF-AgSAE). The optimum conditions have been evaluated for their determination in Britton-Robinson buffer solutions. The limit of quantification (LQ) for 5-nitrobenzimidazole at p-AgSAE was 0.77μmolL-1 (DCV) and 0.47μmolL-1 (DPV), at m-AgSAE it was 0.32μmolL-1 (DCV) and 0.16μmolL-1 (DPV), and at MF-AgSAE it was 0.97μmolL-1 (DCV) and 0.70μmolL-1 (DPV). For 4-nitrophenol at p-AgSAE, LQ was 0.37μmolL-1 (DCV) and 0.32μmolL-1 (DPV), at m-AgSAE it was 0.14μmolL-1 (DCV) and 0.1μmolL-1 (DPV), and at MF-AgSAE, it was 0.87μmolL-1 (DCV) and 0.37μmolL-1 (DPV). Thorough comparative studies have shown that m-AgSAE is the best sensor for voltammetric determination of the two model genotoxic compounds because it gives the lowest LQ, is easier to prepare, and its surface can be easily renewed both chemically (by new amalgamation) and/or electrochemically (by imposition of cleaning pulses). The practical applicability of the newly developed methods was verified on model samples of drinking water.",
keywords = "4-Nitrophenol, 5-Nitrobenzimidazole, Mercury film modified silver solid amalgam electrode, Mercury meniscus modified silver solid amalgam electrode, Polished silver solid amalgam electrode, Voltammetry",
author = "Dana De{\'y}lov{\'a} and Bogdan Yosypchuk and Vlastimil Vyskočil and Jiř{\'i} Barek",
year = "2011",
month = "7",
day = "1",
doi = "10.1002/elan.201100067",
language = "English",
volume = "23",
pages = "1548--1555",
journal = "Macromolecular Chemistry and Physics",
issn = "1040-0397",
publisher = "Wiley-VCH Verlag",
number = "7",

}

TY - JOUR

T1 - Voltammetric determination of 4-nitrophenol and 5-nitrobenzimidazole using different types of silver solid amalgam electrodes - a comparative study

AU - Deýlová, Dana

AU - Yosypchuk, Bogdan

AU - Vyskočil, Vlastimil

AU - Barek, Jiří

PY - 2011/7/1

Y1 - 2011/7/1

N2 - The voltammetric behavior of two genotoxic nitro compounds (4-nitrophenol and 5-nitrobenzimidazole) has been investigated using direct current voltammetry (DCV) and differential pulse voltammetry (DPV) at a polished silver solid amalgam electrode (p-AgSAE), a mercury meniscus modified silver solid amalgam electrode (m-AgSAE), and a mercury film modified silver solid amalgam electrode (MF-AgSAE). The optimum conditions have been evaluated for their determination in Britton-Robinson buffer solutions. The limit of quantification (LQ) for 5-nitrobenzimidazole at p-AgSAE was 0.77μmolL-1 (DCV) and 0.47μmolL-1 (DPV), at m-AgSAE it was 0.32μmolL-1 (DCV) and 0.16μmolL-1 (DPV), and at MF-AgSAE it was 0.97μmolL-1 (DCV) and 0.70μmolL-1 (DPV). For 4-nitrophenol at p-AgSAE, LQ was 0.37μmolL-1 (DCV) and 0.32μmolL-1 (DPV), at m-AgSAE it was 0.14μmolL-1 (DCV) and 0.1μmolL-1 (DPV), and at MF-AgSAE, it was 0.87μmolL-1 (DCV) and 0.37μmolL-1 (DPV). Thorough comparative studies have shown that m-AgSAE is the best sensor for voltammetric determination of the two model genotoxic compounds because it gives the lowest LQ, is easier to prepare, and its surface can be easily renewed both chemically (by new amalgamation) and/or electrochemically (by imposition of cleaning pulses). The practical applicability of the newly developed methods was verified on model samples of drinking water.

AB - The voltammetric behavior of two genotoxic nitro compounds (4-nitrophenol and 5-nitrobenzimidazole) has been investigated using direct current voltammetry (DCV) and differential pulse voltammetry (DPV) at a polished silver solid amalgam electrode (p-AgSAE), a mercury meniscus modified silver solid amalgam electrode (m-AgSAE), and a mercury film modified silver solid amalgam electrode (MF-AgSAE). The optimum conditions have been evaluated for their determination in Britton-Robinson buffer solutions. The limit of quantification (LQ) for 5-nitrobenzimidazole at p-AgSAE was 0.77μmolL-1 (DCV) and 0.47μmolL-1 (DPV), at m-AgSAE it was 0.32μmolL-1 (DCV) and 0.16μmolL-1 (DPV), and at MF-AgSAE it was 0.97μmolL-1 (DCV) and 0.70μmolL-1 (DPV). For 4-nitrophenol at p-AgSAE, LQ was 0.37μmolL-1 (DCV) and 0.32μmolL-1 (DPV), at m-AgSAE it was 0.14μmolL-1 (DCV) and 0.1μmolL-1 (DPV), and at MF-AgSAE, it was 0.87μmolL-1 (DCV) and 0.37μmolL-1 (DPV). Thorough comparative studies have shown that m-AgSAE is the best sensor for voltammetric determination of the two model genotoxic compounds because it gives the lowest LQ, is easier to prepare, and its surface can be easily renewed both chemically (by new amalgamation) and/or electrochemically (by imposition of cleaning pulses). The practical applicability of the newly developed methods was verified on model samples of drinking water.

KW - 4-Nitrophenol

KW - 5-Nitrobenzimidazole

KW - Mercury film modified silver solid amalgam electrode

KW - Mercury meniscus modified silver solid amalgam electrode

KW - Polished silver solid amalgam electrode

KW - Voltammetry

UR - http://www.scopus.com/inward/record.url?scp=79960105631&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79960105631&partnerID=8YFLogxK

U2 - 10.1002/elan.201100067

DO - 10.1002/elan.201100067

M3 - Article

AN - SCOPUS:79960105631

VL - 23

SP - 1548

EP - 1555

JO - Macromolecular Chemistry and Physics

JF - Macromolecular Chemistry and Physics

SN - 1040-0397

IS - 7

ER -