Pregled bibliografske jedinice broj: 1052912
Instrumental techniques in vitamin C analysis
Instrumental techniques in vitamin C analysis // Knjiga sažetaka s 12. međunarodnog znanstveno- stručnog skupa HRANOM DO ZDRAVLJA / Babić, Jurislav ; Šubarić, Drago ; Jašić Midhat (ur.).
Osijek: Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku ; Tehnološki fakultet Univerziteta u Tuzli, 2019. str. 142-142 (poster, međunarodna recenzija, sažetak, znanstveni)
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Naslov
Instrumental techniques in vitamin C analysis
Autori
Tomac, Ivana ; Buljeta, Ivana ; Ištuk, Jozo ; Jakobek, Lidija
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Knjiga sažetaka s 12. međunarodnog znanstveno- stručnog skupa HRANOM DO ZDRAVLJA
/ Babić, Jurislav ; Šubarić, Drago ; Jašić Midhat - Osijek : Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku ; Tehnološki fakultet Univerziteta u Tuzli, 2019, 142-142
ISBN
978-953-7005-66-5
Skup
12. međunarodni znanstveno-stručni skup: hranom do zdravlja = 12th International Scientific and Professional Conference: With food to health
Mjesto i datum
Osijek, Hrvatska; Tuzla, Bosna i Hercegovina, 24.10.2019. - 25.10.2019
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
vitamin C ; spectrophotometry ; titrations ; electrochemical techniques ; real samples
Sažetak
Vitamin C is water-soluble and the first synthesized vitamin, which has significant antiradical properties and the positive influence on human health. Usually, the content of vitamin C in real samples is determined by the potentiometric and iodometric titration, spectrophotometry and electrochemical techniques. Because of the rapid oxidation on the surface of the glassy carbon electrode, voltammetric techniques are also a good choice for determination of vitamin C content in the real samples as well chronopotentiometry. The aim of this paper is to show the application of the most common titration techniques and spectrophotometry in comparison to electrochemical techniques such as cyclic, differential pulse and square-wave voltammetry and flow chronopotentiometry in the determination of vitamin C content in real samples (fruits, juices and tablets of multivitamins). The linearity of methods, limits of detection and limits of quantification for all applied instrumental techniques were determined and all techniques proved to be sensitive and selective for determination of the vitamin C content in the real samples.
Izvorni jezik
Engleski
Znanstvena područja
Kemija, Prehrambena tehnologija
POVEZANOST RADA
Ustanove:
Prehrambeno-tehnološki fakultet, Osijek
