Sensitive electrochemical sensor for the determination of folic acid based on a bismuth-film electrode

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F17%3A39910923" target="_blank" >RIV/00216275:25310/17:39910923 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s00706-016-1849-9" target="_blank" >http://dx.doi.org/10.1007/s00706-016-1849-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00706-016-1849-9" target="_blank" >10.1007/s00706-016-1849-9</a>

Result language

angličtina

Original language name

Sensitive electrochemical sensor for the determination of folic acid based on a bismuth-film electrode

Original language description

A bismuth-film electrode prepared ex situ on the glassy carbon electrode support exhibited favorable electroanalytical performance for voltammetric measurement of folic acid. The reduction behavior of this substance was studied in aqueous solutions within the pH 1-7, the highest response being obtained in Britton–Robinson buffer with pH 2. In the differential pulse voltammetry, the bismuth-film electrode showed a linear dynamic range from 2.5 9 10-8 to 3 9 10-5 mol dm-3 folic acid, when reaching an extraordinary repeatability of measurements [RSD(11) = 1.03 %], of determination [RSD(5) B 0.87 %], or detection capabilities (LOD = 4.1 9 10-9 mol dm-3). After optimization of key experimental and instrumental parameters, the respective method was tested by analyzing vitamin preparations and fruit juice, when the results agreed well with the declared content. Thus, the method for the determination of folic acid with a bismuth-film electrode can be proposed as an alternative to those employing mercury and amalgam electrodes, previously applied for the same purpose by our group.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10406 - Analytical chemistry

Project

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Continuities

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

Publication year

2017

Confidentiality

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

Name of the periodical

Monatshefte fur Chemie

ISSN

0026-9247

e-ISSN

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Volume of the periodical

148

Issue of the periodical within the volume

3

Country of publishing house

AT - AUSTRIA

Number of pages

11

Pages from-to

423-433

UT code for WoS article

000396528600005

EID of the result in the Scopus database

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