Electrochemical behavior and voltammetric determination of the herbicide metribuzin at mercury electrodes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F01%3A00001339" target="_blank" >RIV/61989592:15310/01:00001339 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Electrochemical behavior and voltammetric determination of the herbicide metribuzin at mercury electrodes

Original language description

The electrochemical behavior of the herbicide metribuzin (4 amino-6-teat-butyl-4,5-dihydro-3-methylthio-1,2,4-triazin-5 one) at mercury electrodes was studied in aqueous solutions by direct current (DC) and tast polarography, differential pulse (DPV) andcyclic voltammetry (CV), and controlled-potential coulometry. The electrolysis products were separated and identified by chromatographic techniques combined with mass spectrometric detection. The reduction process in acid media includes two irreversiblesteps. In the first four-electron step the N-NH2 and the 1,6-azomethine bonds are reduced. The second step leads to the formation of 5-tert-butyl-2,3,4,5 tetrahydroimidazol-4-one at the mercury-pool electrode. The first reduction step combined with adsorptive accumulation of the herbicide molecule at the mercury electrode surface was used for its determination by differential pulse adsorptive stripping voltammetry (DPAdSV). Calibration curves were linear in the range 1-30 mug L-1 with a

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

CB - Analytical chemistry, separation

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2001

Confidentiality

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

Name of the periodical

Fresenius Journal of Analytical Chemistry

ISSN

0937-0633

e-ISSN

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Volume of the periodical

370

Issue of the periodical within the volume

7

Country of publishing house

DE - GERMANY

Number of pages

7

Pages from-to

963-969

UT code for WoS article

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EID of the result in the Scopus database

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