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Določanje kislinske stopnje naravnih olj z inverzno plinsko kromatografijo = Determination of acidic characteristics of natural oils by inverse gas chromatography : diplomska nalogaKreitner, JanaV diplomski nalogi smo oljènemu olju po dodatkih prostih masèobnih kislin (oleinske kisline) doloèali stopnjo kislosti z inverzno plinsko kromatografijo(IGC). Iz dobljenih IGC vrednosti smo ... izraèunali vrednost specifiènega (polarnega) dela spremembe proste energije adsorpcije ( ), ki je v sorazmerju s specifiènimi kislo-baziènimi interakcijami in nato se vrednosti in . Poudarek smo dali vrednosti , ki predstavlja kislost vzorca oljènega olja. Razlike v kislosti vzorcev smo vzporedno potrjevali se z doloèanjem kislinskega stevila po metodi veljavne Evropske farmakopeje. Na osnovi meritev IGC-ja smo ugotovili, da se z visanjem kislosti vzorcev olja zvisajo tudi vrednosti za bazièni tetrahidrofuran. Na osnovi za tetrahidrofuran smo ocenili, da ima originalni vzorec oljènega olja najmanjso kislost, kislost pa se poveèuje z dodajanjem oleinske kisline. Najbolj kisle karakteristike pa ima po prièakovanju vzorec oleinske kisline. Vrednost , ki izraza baziène lastnosti vzorca, je najvisja pri originalnemu vzorcu oljènega olja, vrednosti pa se nizajo z visanjem vsebnosti oleinske kisline. Najnizjo vrednost ima èisti vzorec oleinske kisline.Vzporedno smo potrjevali, da vrednosti kislinskega stevila vzorca narasèajo z narasèajoèo vsebnostjo prostih masèobnih kislin.Ugotovili smo, da med rezultati IGC in kislinskim stevilom v vzorcih oljènega olja obstaja jasna korelacija. V diplomskem delu smo uporabili IGC kot nov pristop za doloèevanje kislosti masèobType of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [Kreitner, J.], 2006Language - slovenianCOBISS.SI-ID - 1976945
Author
Kreitner, Jana
Other authors
Srčič, Stanko |
Zadnik, Jernej
Topics
oljčno olje |
oksidativna žarkost olj |
kromatografske metode |
inverzna plinska kromatografija |
metode
Library/institution |
City | Acronym | For loan | Other holdings |
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Faculty of Pharmacy, Ljubljana | Ljubljana | FFALJ |
reading room 1 cop.
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Year | Impact factor | Edition | Category | Classification | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Kreitner, Jana | |
Srčič, Stanko | 09031 |
Zadnik, Jernej | 23590 |
Source: Personal bibliographies
and: SICRIS
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