Electrochemical study of 4-chloro-3-methylphenol on anodically pretreated boron-doped diamond electrode in the absence and presence of a cationic surfactant

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F16%3A10324083" target="_blank" >RIV/00216208:11310/16:10324083 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.jelechem.2016.03.031" target="_blank" >http://dx.doi.org/10.1016/j.jelechem.2016.03.031</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jelechem.2016.03.031" target="_blank" >10.1016/j.jelechem.2016.03.031</a>

Result language

angličtina

Original language name

Electrochemical study of 4-chloro-3-methylphenol on anodically pretreated boron-doped diamond electrode in the absence and presence of a cationic surfactant

Original language description

Electrochemical behavior as a basis for voltammetric detection of the priority environmental pollutant 4-chloro-3-methylphenol (PCMC) on a bare boron-doped diamond electrode using DC voltammetry, differential pulse voltammetry, and square-wave voltammetry is presented. PCMC provides a well-defined and highly reproducible oxidation peak in the region from + 1000 mV to + 1200 mV (vs. Ag lAgCl, 3 mol L-1 KCl) in aqueous media in pH range 2.0-10.0. Boron-doped diamond electrodes with metallic type of conductivity (B/C ratio in gaseous phase during deposition procedure 2000 ppm-8000 ppm) and anodic pretreatment of the electrode surface exhibit a better electrochemical response and sensitivity in comparison with cathodic pretreatment and detection using semiconductive electrodes (500 ppm and 1000 ppm B/C ratio). Further, voltammograms are narrowed and visibly amplified in the presence of the cationic surfactant cetyltrimethylammonium bromide (CTAB) at pH values higher than 9.0 due to its electrostatic interaction with the phenolate anion of PCMC (pK(a) = 9.55). Under optimized experimental conditions the developed electroanalytical methods exhibit detection limits in the 10(-7) mol L-1 concentration range in alkaline media (0.01 mol L-1 NaOH) in the presence of CTAB or in acidic media (0.1 mol L-1 phosphate buffer, pH 2.0) in its absence.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CG - Electrochemistry

OECD FORD branch

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Project

<a href="/en/project/GBP206%2F12%2FG151" target="_blank" >GBP206/12/G151: Center of novel approaches to bioanalysis and molecular diagnostics</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Electroanalytical Chemistry

ISSN

1572-6657

e-ISSN

—

Volume of the periodical

771

Issue of the periodical within the volume

June

Country of publishing house

CH - SWITZERLAND

Number of pages

9

Pages from-to

1-9

UT code for WoS article

000376547000001

EID of the result in the Scopus database

2-s2.0-84963779321