Chromatography Research International. 2011, ID 252543
Suggested Citation
Sansa-ard, C, Aryusuk,K, Lilitchan, S, Supathra Lilitchan, Krisnangkura, K, สุภัทรา ลิลิตชาญ Free energy contribution to gas chromatographic separation of petroselinate and oleate esters. Chromatography Research International. 2011, ID 252543. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/2317
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Free energy contribution to gas chromatographic separation of petroselinate and oleate esters
The ease of separation by gas chromatography between petroselinic and oleic acids depends on the alcoholmoieties of their esters.
The esters of higher molecular weight alcohols tend to be better separated on a 90%-biscyanopropyl-10%-cyanopropylphenyl
polysiloxane capillary column (30m? 0.25mmi.d.). By analysis of free energies contribution fromdifferent parts of themolecules,
it is tentatively concluded that the interaction between the double bond and the column stationary phase is interfered by the bulky
alkyl group, and it is the major driving force for the separation of the two fatty acids.
