A preliminary study on the selectivity of linear polynuclear aromatic hydrocarbons in SFC using phenyl-type stationary phasesShow others and affiliations
2015 (English)In: Microchemical journal (Print), ISSN 0026-265X, E-ISSN 1095-9149, Vol. 121, p. 136-140Article in journal (Refereed) Published
Abstract [en]
The retention behaviour of a homologous series of polyaromatic hydrocarbons was evaluated on two phenyl-type stationary phases in reversed phase supercritical fluid chromatography (SFC). These phases were the Synergi polar-RP phase and the Cosmosil 5PBB phase, both of which are polar end-capped and incorporate an ether in a propyl chain that tethers the phenyl ring to the silica surface. The Cosmosil 5PBB phase also has five bromine atoms on the phenyl ring. The retention capacity of the Cosmosil column was substantially greater than the Synergi column. However, selectivity on the Cosmosil column was effectively independent of the acetonitrile modifier composition in the CO2 mobile phase, whereas, selectivity on the Synergi column was greatly affected by the acetonitrile modifier in the CO2 mobile phase. The results from this study showed that selectivity and retention studies in HPLC cannot be used to predict selectivity and retention behaviour in SFC. (C) 2015 Elsevier B.V. All rights reserved.
Place, publisher, year, edition, pages
Elsevier, 2015. Vol. 121, p. 136-140
Keywords [en]
SFC; HPLC; Polynuclear aromatic hydrocarbons; Selectivity; Organic modifier
National Category
Polymer Technologies Other Chemical Engineering Organic Chemistry Analytical Chemistry
Research subject
Chemistry; Chemical Engineering
Identifiers
URN: urn:nbn:se:kau:diva-37302DOI: 10.1016/j.microc.2015.02.011ISI: 000354589700016OAI: oai:DiVA.org:kau-37302DiVA, id: diva2:844526
Funder
Swedish Research Council2015-08-062015-08-062020-05-13Bibliographically approved