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Title:Supercritical fluid adsorption and desorption of lipids on various adsorbents
Authors:Škerget, Mojca (Author)
Knez, Željko (Author)
Files:.pdf Acta_Chimica_Slovenica_2007_Skerget,_Knez_Supercritical_fluid_adsorption_and_desorption_of_lipids_on_various_adsorbents.pdf (167,88 KB)
MD5: 8218A504164ED544E1233BAF762C7C4B
 
URL http://acta-arhiv.chem-soc.si/54/54-4-688.pdf
 
Language:English
Work type:Scientific work (r2)
Typology:1.01 - Original Scientific Article
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:In present work the feasibility of using supercritical fluid chromatography (SFC) for separation of free fatty acids (FFA) and triglycerides has been examined. Lipids such as oleic acid and sunflower oil (containing 96% of triglycerides) were used; adsorption and desorption on adsorbents such as silica gel and neusilin using supercritical $CO_2$ as mobile phase was investigated. The experiments were performed at 40 °C and in the pressure range from 13 to 30 MPa. Adsorption kinetic lines were determined by analysingbreakthrough curves. Several parameters such as rate of adsorption and desorption, loading, desorbed quantity and diffusion coefficients in solid phase were calculated.
Keywords:supercritical fluid chromatography, lipids, oleic acid, triglycerides, adsorption, desorption
Year of publishing:2007
Number of pages:str. 688-692
Numbering:št. 4, Letn. 54
ISSN:1318-0207
UDC:66-987
ISSN on article:1318-0207
COBISS_ID:12002326 New window
NUK URN:URN:SI:UM:DK:XIN6GAO9
Views:1708
Downloads:69
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Categories:Misc.
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Record is a part of a journal

Title:Acta Chimica Slovenica
Shortened title:Acta Chim. Slov.
Publisher:Slovensko kemijsko društvo
ISSN:1318-0207
COBISS.SI-ID:14086149 New window

Document is financed by a project

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:P2-0046
Name:Separacijski procesi

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:31.05.2012

Secondary language

Language:Slovenian
Abstract:Raziskali smo uporabnost postopka superkritične kromatografije (SFC) za separacijo prostih maščobnih kislin (FFA) in trigliceridov. V eksperimentih adsorpcije in desorpcije na silikagel in neusilin smo uporabili oleinsko kislino in sončnično olje, ki je vsebovalo 96 % trigliceridov. Kot mobilno fazo smo uporabili superkritični $CO_2$ pri 40 °C in v območju tlakov od 13 do 30 MPa. Študirali smo kinetiko adsorpcije in desorpcije in določili parametre kot so adsorpcijska in desorpcijska hitrost, adsorbirana in desorbirana množina substance ter difuzijske koeficiente substanc v trdni fazi (adsorbentu).
Keywords:superkritična tekočinska kromatografija, lipidi, trigliceridi, adsorpcija, desorpcija


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