Sensitive voltammetric approach for selective determination of a new generation fungicides mefentrifluconazole and fluxapyroxad

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F24%3A39921669" target="_blank" >RIV/00216275:25310/24:39921669 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0026265X24001607?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0026265X24001607?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.microc.2024.110048" target="_blank" >10.1016/j.microc.2024.110048</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Sensitive voltammetric approach for selective determination of a new generation fungicides mefentrifluconazole and fluxapyroxad

Popis výsledku v původním jazyce

Electrochemical behaviour of fungicides mefentrifluconazole and fluxapyroxad was investigated for the first time. Moreover, sensitive voltammetric methods for their determination, based on the oxidation, were developed. The proposed approaches allowed their simultaneous determination in mixtures. The determination was carried out by differential pulse voltammetry in combination with a boron -doped diamond working electrode in Britton-Robinson buffer (pH 9) in the presence of 33% acetonitrile. Low limits of quantification were achieved, namely 49.1 nmol L-1 for mefentrifluconazole and 70.2 nmol L-1 for fluxapyroxad. These methods were successfully applied to analysis of four real plant protection products containing both of the following analytes. Based on LC-MS analysis of the preparative electrolysis products, plausible compounds formed during the electrochemical oxidation of analytes were proposed and the obtained results were supported with HOMO spatial distribution calculations.

Název v anglickém jazyce

Sensitive voltammetric approach for selective determination of a new generation fungicides mefentrifluconazole and fluxapyroxad

Popis výsledku anglicky

Electrochemical behaviour of fungicides mefentrifluconazole and fluxapyroxad was investigated for the first time. Moreover, sensitive voltammetric methods for their determination, based on the oxidation, were developed. The proposed approaches allowed their simultaneous determination in mixtures. The determination was carried out by differential pulse voltammetry in combination with a boron -doped diamond working electrode in Britton-Robinson buffer (pH 9) in the presence of 33% acetonitrile. Low limits of quantification were achieved, namely 49.1 nmol L-1 for mefentrifluconazole and 70.2 nmol L-1 for fluxapyroxad. These methods were successfully applied to analysis of four real plant protection products containing both of the following analytes. Based on LC-MS analysis of the preparative electrolysis products, plausible compounds formed during the electrochemical oxidation of analytes were proposed and the obtained results were supported with HOMO spatial distribution calculations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Microchemical Journal

ISSN

0026-265X

e-ISSN

1095-9149

Svazek periodika

199

Číslo periodika v rámci svazku

April 2024

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

110048

Kód UT WoS článku

001184047200001

EID výsledku v databázi Scopus

2-s2.0-85185515312