Electrochemical properties of ?-tocopherol in aqueous electrolytes after its previous extraction into the glassy carbon paste from aqueous-acetonic mixture

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F16%3A39901119" target="_blank" >RIV/00216275:25310/16:39901119 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s00706-015-1620-7" target="_blank" >http://dx.doi.org/10.1007/s00706-015-1620-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00706-015-1620-7" target="_blank" >10.1007/s00706-015-1620-7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electrochemical properties of ?-tocopherol in aqueous electrolytes after its previous extraction into the glassy carbon paste from aqueous-acetonic mixture

Popis výsledku v původním jazyce

Study on electrochemical behavior of lipophilic ?-tocopherol, which is recognized as the most active form of vitamin E, was performed using extraction voltammetry in solely aqueous supporting electrolytes. In the first step, ?-tocopherol was extracted into the silicone oil, acting as a binder of glassy carbon paste electrode, from aqueous-organic mixture. Generally, the extraction into the electrode material was carried out from solution containing 50 ?mol dmMINUS SIGN 3 ?-tocopherol and 60 % acetone for period of 240 s and corresponding stirring rate of 400 rpm. Electrochemical study was undertaken subsequently by cyclic voltammetry after placing the electrode in aqueous supporting electrolyte. Due to the accumulation effect of extraction, voltammetric records exhibited intensive current signals in acidic media when compared to those obtained at solid glassy carbon electrode. Investigations revealed a promising application of carbon paste electrodes for sensitive analysis of ?-tocopherol or other electroactive lipophilic species after their extractive preconcentration.

Název v anglickém jazyce

Electrochemical properties of ?-tocopherol in aqueous electrolytes after its previous extraction into the glassy carbon paste from aqueous-acetonic mixture

Popis výsledku anglicky

Study on electrochemical behavior of lipophilic ?-tocopherol, which is recognized as the most active form of vitamin E, was performed using extraction voltammetry in solely aqueous supporting electrolytes. In the first step, ?-tocopherol was extracted into the silicone oil, acting as a binder of glassy carbon paste electrode, from aqueous-organic mixture. Generally, the extraction into the electrode material was carried out from solution containing 50 ?mol dmMINUS SIGN 3 ?-tocopherol and 60 % acetone for period of 240 s and corresponding stirring rate of 400 rpm. Electrochemical study was undertaken subsequently by cyclic voltammetry after placing the electrode in aqueous supporting electrolyte. Due to the accumulation effect of extraction, voltammetric records exhibited intensive current signals in acidic media when compared to those obtained at solid glassy carbon electrode. Investigations revealed a promising application of carbon paste electrodes for sensitive analysis of ?-tocopherol or other electroactive lipophilic species after their extractive preconcentration.

Druh

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

CEP obor

CG - Elektrochemie

OECD FORD obor

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Projekt

<a href="/cs/project/EE2.3.30.0021" target="_blank" >EE2.3.30.0021: Posílení excelentních týmů výzkumu a vývoje na Univerzitě Pardubice</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Monatshefte fur Chemie

ISSN

0026-9247

e-ISSN

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Svazek periodika

147

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

AT - Rakouská republika

Počet stran výsledku

8

Strana od-do

31-38

Kód UT WoS článku

000367521400005

EID výsledku v databázi Scopus

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