Electrochemical study and determination of all-trans-retinol at carbon paste electrode modified by a surfactant
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F18%3A39912540" target="_blank" >RIV/00216275:25310/18:39912540 - isvavai.cz</a>
Result on the web
<a href="http://www.ftb.com.hr/images/pdfarticles/2018/July-September/FTB-56-337.pdf" target="_blank" >http://www.ftb.com.hr/images/pdfarticles/2018/July-September/FTB-56-337.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17113/ftb.56.03.18.5618" target="_blank" >10.17113/ftb.56.03.18.5618</a>
Alternative languages
Result language
angličtina
Original language name
Electrochemical study and determination of all-trans-retinol at carbon paste electrode modified by a surfactant
Original language description
The oxidation mechanism of all-trans-retinol (vitamin A,) and its several esters in non-aqueous, aqueous organic mixture, and pure aqueous media was investigated by cyclic voltammetry.The oxidation occurred in several irreversible steps. The calculated highest density of electrons in retinoid molecules which are delocalized over carbon atoms of the five conjugated double bonds (C5-C14) was found in the part of the molecule involved in oxidation processes. The most sensitive oxidation peak (at +0.8 V vs. Ag/AgCl) was used for development of new direct voltammetric method based on differential pulse voltammetry for the determination of retinol at carbon paste electrode modified with surfactant sodium dodecyl sulfate (CPE/SDS). The results show that 30 % (by mass) of modifier SDS exhibited optimal sensitivity and shape of voltammograms. Compared to commonly used glassy carbon electrode (GCE),the CPE/SDS showed significant progress in the retinol electroanalysis.The linear ranges for retinol determination were 1.5.10(-6)-1.8.10(-4) M for CPE/SDS and 4.4.10(-6)-7.0.10(-4) M for GCE with the detection limits of 1.3.10(-6) and 4.6.10(-7) M, respectively.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - 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
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Food Technology and Biotechnology
ISSN
1330-9862
e-ISSN
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Volume of the periodical
56
Issue of the periodical within the volume
3
Country of publishing house
SI - SLOVENIA
Number of pages
7
Pages from-to
337-343
UT code for WoS article
000448026200004
EID of the result in the Scopus database
2-s2.0-85055701343