Electrochemical Behavior of alpha-Tocopherol in Various Electrolytes after its Previous Extraction into the Heterogeneous Electrode Material from Aqueous-Acetone Mixture

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Electrochemical Behavior of alpha-Tocopherol in Various Electrolytes after its Previous Extraction into the Heterogeneous Electrode Material from Aqueous-Acetone Mixture

Popis výsledku v původním jazyce

During comparison of heterogeneous electrode materials with solid glassy carbon, an extraction of alpha-tocopherol into used lipophilic binder was observed, which can be used for isolation of this biologically active chemical compound from sample matrixand its following analysis by pulse electrochemical techniques. Accordingly, electrochemical behavior of alpha-tocopherol (known as the most active form of vitamin E) in various electrolytes after its previous extraction into the heterogeneous electrodematerial from an aqueous-acetone mixture was investigated by cyclic voltammetry. Usually, the alpha-tocopherol was extracted into glassy carbon paste of the electrode from its solution (50 umol L-1) containing 60% acetone for 240 s at speed of stirring 400 rpm. Concerning cyclic voltammetry, following parameters were adjusted in this study: potential range, -0.5 to +1.3 V vs Ag/AgC/3.0 mol.L-1 KCl; scan rate (nu), 50 mV s(-1); potential step, 5 mV; number of scans, n=5. The results were

Název v anglickém jazyce

Electrochemical Behavior of alpha-Tocopherol in Various Electrolytes after its Previous Extraction into the Heterogeneous Electrode Material from Aqueous-Acetone Mixture

Popis výsledku anglicky

During comparison of heterogeneous electrode materials with solid glassy carbon, an extraction of alpha-tocopherol into used lipophilic binder was observed, which can be used for isolation of this biologically active chemical compound from sample matrixand its following analysis by pulse electrochemical techniques. Accordingly, electrochemical behavior of alpha-tocopherol (known as the most active form of vitamin E) in various electrolytes after its previous extraction into the heterogeneous electrodematerial from an aqueous-acetone mixture was investigated by cyclic voltammetry. Usually, the alpha-tocopherol was extracted into glassy carbon paste of the electrode from its solution (50 umol L-1) containing 60% acetone for 240 s at speed of stirring 400 rpm. Concerning cyclic voltammetry, following parameters were adjusted in this study: potential range, -0.5 to +1.3 V vs Ag/AgC/3.0 mol.L-1 KCl; scan rate (nu), 50 mV s(-1); potential step, 5 mV; number of scans, n=5. The results were

Druh

D - Stať ve sborníku

CEP obor

CG - Elektrochemie

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

XXXV Moderní elektrochemické metody

ISBN

978-80-905221-3-8

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

214-218

Název nakladatele

BEST Servis

Místo vydání

Ústí nad Labem

Místo konání akce

Jetrichovice

Datum konání akce

18. 5. 2015

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000358792900048