Sensitive Voltammetric Determination of Natural Flavonoid Quercetin in a Disposable Graphite Lead

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F15%3A39900257" target="_blank" >RIV/00216275:25310/15:39900257 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.17113/ftb.53.04.15.4176" target="_blank" >http://dx.doi.org/10.17113/ftb.53.04.15.4176</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17113/ftb.53.04.15.4176" target="_blank" >10.17113/ftb.53.04.15.4176</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Sensitive Voltammetric Determination of Natural Flavonoid Quercetin in a Disposable Graphite Lead

Popis výsledku v původním jazyce

In this paper, a pencil graphite electrode was pretreated using chronoamperometry technique in phosphate buffer solution (pH=7.0) for sensitive determination of quercetin. Oxidation of quercetin was investigated using pretreated pencil graphite electrodeand anodic stripping differential pulse voltammetry. Under optimal conditions, the anodic current of quercetin exhibited linear response to its concentration in the range from 0.001 to 1.5 ?mol/L with the limit of detection of 0.3.10-3 ?mol/L. The proposed method was successfully applied for the determination of quercetin in cranberry and black currant juices with recovery rate from 93.2 to 94.7 %. Solid-phase extraction was found to be necessary prior to voltammetric determination of quercetin in fruit juice samples using pretreated pencil graphite electrode.

Název v anglickém jazyce

Sensitive Voltammetric Determination of Natural Flavonoid Quercetin in a Disposable Graphite Lead

Popis výsledku anglicky

In this paper, a pencil graphite electrode was pretreated using chronoamperometry technique in phosphate buffer solution (pH=7.0) for sensitive determination of quercetin. Oxidation of quercetin was investigated using pretreated pencil graphite electrodeand anodic stripping differential pulse voltammetry. Under optimal conditions, the anodic current of quercetin exhibited linear response to its concentration in the range from 0.001 to 1.5 ?mol/L with the limit of detection of 0.3.10-3 ?mol/L. The proposed method was successfully applied for the determination of quercetin in cranberry and black currant juices with recovery rate from 93.2 to 94.7 %. Solid-phase extraction was found to be necessary prior to voltammetric determination of quercetin in fruit juice samples using pretreated pencil graphite electrode.

Druh

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

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 periodika

Food Technology and Biotechnology

ISSN

1330-9862

e-ISSN

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Svazek periodika

53

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

SI - Slovinská republika

Počet stran výsledku

6

Strana od-do

379-384

Kód UT WoS článku

000367965800002

EID výsledku v databázi Scopus

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