Voltammetric determination of daminozide and its degradation product N,Ndimethylhydrazine using a boron-doped diamond electrode

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F22%3A39919130" target="_blank" >RIV/00216275:25310/22:39919130 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1572665721008833" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1572665721008833</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jelechem.2021.115857" target="_blank" >10.1016/j.jelechem.2021.115857</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Voltammetric determination of daminozide and its degradation product N,Ndimethylhydrazine using a boron-doped diamond electrode

Popis výsledku v původním jazyce

The simultaneous determination of growth regulator daminozide (DMZ) and its degradation product N,Ndimethylhydrazine (DMH) via their direct electrochemical oxidation was investigated for the first time and the mechanism of DMZ oxidation has been proposed. With regard to the very positive values of the oxidation potentials of both substances, a boron doped diamond electrode (BDDE) was used as the working electrode and Britton-Robinson buffer of pH 9 was applied as the suitable supporting electrolyte. First, a differential pulse voltammetric method for DMZ determination was developed, which provided a very low detection limit (LOD = 4.56 × 10−7 mol L−1). DMH could also be determined under the same experimental conditions (LOD = 2.16 × 10−7 mol L−1). The proposed extraction technique then allowed the determination of concentrations up to 50 times lower. In case of the mixture analysis, while the determination of DMH was not affected by the presence of DMZ, the results of the DMZ analysis were significantly influenced by the presence of its degradation product. Therefore, a method for removing DMH from a sample was also developed in this work. Finally, real samples of a commercially available pesticide preparation and spiked natural and rinsing waterswere successfully analyzed.

Název v anglickém jazyce

Voltammetric determination of daminozide and its degradation product N,Ndimethylhydrazine using a boron-doped diamond electrode

Popis výsledku anglicky

The simultaneous determination of growth regulator daminozide (DMZ) and its degradation product N,Ndimethylhydrazine (DMH) via their direct electrochemical oxidation was investigated for the first time and the mechanism of DMZ oxidation has been proposed. With regard to the very positive values of the oxidation potentials of both substances, a boron doped diamond electrode (BDDE) was used as the working electrode and Britton-Robinson buffer of pH 9 was applied as the suitable supporting electrolyte. First, a differential pulse voltammetric method for DMZ determination was developed, which provided a very low detection limit (LOD = 4.56 × 10−7 mol L−1). DMH could also be determined under the same experimental conditions (LOD = 2.16 × 10−7 mol L−1). The proposed extraction technique then allowed the determination of concentrations up to 50 times lower. In case of the mixture analysis, while the determination of DMH was not affected by the presence of DMZ, the results of the DMZ analysis were significantly influenced by the presence of its degradation product. Therefore, a method for removing DMH from a sample was also developed in this work. Finally, real samples of a commercially available pesticide preparation and spiked natural and rinsing waterswere successfully analyzed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

<a href="/cs/project/GA20-01589S" target="_blank" >GA20-01589S: Nové strategie pro zlepšení senzorových vlastností nových elektrodových materiálů prostřednictvím jejich předúpravy či modifikace povrchu</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Journal of Electroanalytical Chemistry

ISSN

1572-6657

e-ISSN

1873-2569

Svazek periodika

904

Číslo periodika v rámci svazku

January

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

8

Strana od-do

115857

Kód UT WoS článku

000741285700013

EID výsledku v databázi Scopus

2-s2.0-85120320188