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Pregled metod za določevanje vitaminov v prehranskih dopolnilih
NIKOLIĆ, MINA (Author), Kočar, Drago (Mentor) More about this mentor... This link opens in a new window

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Abstract
Vitamini so ključnega pomena za človeško zdravje, saj nezadosten vnos le teh lahko povzroči razne bolezni. Kadar ni možno zagotoviti zadostnega vnosa vitaminov skozi prehrano, uporabljajo ljudje prehranska dopolnila. Uporaba prehranskih dopolnil mora biti strogo kontrolirana, saj je tudi prekomeren vnos vitaminov lahko škodljiv. Iz tega razloga je zelo pomembno ujemanje vsebnosti vitaminov napisane na deklaraciji prehranskega dopolnila z dejansko vsebnostjo. Za kontrolo tega ujemanja potrebujemo natančne, zanesljive in hitre analizne metode. Ene najbolj pogosto uporabljenih so tekočinska kromatografija, kapilarna elektroforeza, voltametrija, spektrofluorimetrija in superkritična tekočinska kromatografija. To diplomsko delo vsebuje kratke teoretične osnove vsake izmed omenjenih metod, opis optimalnih pogojev pri njihovi uporabi za določitev vsebnosti vitaminov v različnih oblikah prehranskih dopolnil in najbolj pogoste načine priprave takšnih vzorcev za analizo.

Language:Slovenian
Keywords:vitamini, prehranska dopolnila, separacijske tehnike, voltametrija, spektorfluorimetrija
Work type:Bachelor thesis/paper (mb11)
Tipology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Technology
Year:2020
COBISS.SI-ID:27665155 Link is opened in a new window
Views:73
Downloads:20
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Secondary language

Language:English
Title:An overview of methods for determining vitamins in dietary supplements
Abstract:
Vitamins are of crucial importance for human health because insufficient intake can cause different diseases. When it's impossible to ensure a sufficient intake of vitamins through the diet, people use dietary supplements. Usage of dietary supplements must be strictly controlled because the excessive intake of vitamins can also be harmful. For that reason, it's important that the amount of vitamins stated on the label of dietary supplement matches the actual amount. To control whether that's true, we need accurate, reliable and fast analytical methods. Some of the most used ones are liquid chromatography, capillary electrophoresis, voltammetry, spectrofluorimetry and supercritical fluid chromatography. This thesis contains short theoretical background for each of these methods, optimal conditions when using them for determination of vitamins in different types of dietary supplements and the most common ways of preparing such samples for the analysis.

Keywords:vitamins, dietary supplements, separation techniques, voltammetry, spectrofluorimetry

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