Použití Eliminační voltametrie ke studio elektrochemické redukce a stanovení herbicide metribuzinu

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F07%3A00305495" target="_blank" >RIV/61388955:_____/07:00305495 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/07:00005787

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Application of Elimination Voltammetry to the Study of Electrochemical Reduction and Determination of the Herbicide Metribuzin

Popis výsledku v původním jazyce

Elimination voltammetry with linear scan (EVLS) was applied to elucidation of electrochemical reduction of herbicide metribuzin (4-amino-6-tert-butyl-3-(methylthio)-1,2,4-triazin-5(4H)-one, MB) at the hanging mercury drop electrode (HMDE). The protonizedform of metribuzin adsorbed on the electrode surface is reduced in several sequential steps in acid and neutral aqueous media. The EVLS functions which conserve diffusion current (Id) and eliminate the charging (Ic), kinetic (Ik) and perhaps even irreversible (Iir) currents are applicable for analytical purposes and enable to achieve better resolution of current signals in comparison with diferential pulse voltammetry. It was demonstrated on determination of metribuzin and deaminated metribuzin in their mixture. Moreover, these EVLS functions minimize the effect of surface active substances occurring in matrix of natural samples, which are competitively adsorbed on the electrode surface and inhibit the measured voltammetric signal.

Název v anglickém jazyce

Application of Elimination Voltammetry to the Study of Electrochemical Reduction and Determination of the Herbicide Metribuzin

Popis výsledku anglicky

Elimination voltammetry with linear scan (EVLS) was applied to elucidation of electrochemical reduction of herbicide metribuzin (4-amino-6-tert-butyl-3-(methylthio)-1,2,4-triazin-5(4H)-one, MB) at the hanging mercury drop electrode (HMDE). The protonizedform of metribuzin adsorbed on the electrode surface is reduced in several sequential steps in acid and neutral aqueous media. The EVLS functions which conserve diffusion current (Id) and eliminate the charging (Ic), kinetic (Ik) and perhaps even irreversible (Iir) currents are applicable for analytical purposes and enable to achieve better resolution of current signals in comparison with diferential pulse voltammetry. It was demonstrated on determination of metribuzin and deaminated metribuzin in their mixture. Moreover, these EVLS functions minimize the effect of surface active substances occurring in matrix of natural samples, which are competitively adsorbed on the electrode surface and inhibit the measured voltammetric signal.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CG - Elektrochemie

OECD FORD obor

—

Projekt

<a href="/cs/project/GA203%2F07%2F1195" target="_blank" >GA203/07/1195: Analýza struktury a interakcí DNA pomocí elektrochemických technik a chemických sond. Nové metody a senzory pro detekci poškození DNA</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název periodika

Chemia Analityczna

ISSN

0009-2223

e-ISSN

—

Svazek periodika

52

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

17

Strana od-do

961-977

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—