Prediction of retention times of polycyclic aromatic hydrocarbons and n -alkanes in temperature-programmed gas chromatography
2007 (English)In: Analytical and Bioanalytical Chemistry, ISSN 1618-2642, E-ISSN 1618-2650, Vol. 389, no 3, 941-950 p.Article in journal (Refereed) Published
We have developed an iterative procedure for predicting the retention times of polycyclic aromatic hydrocarbons (PAHs) and n-alkanes during separations by temperature-programmed gas chromatography. The procedure is based on estimates of two thermodynamic properties for each analyte (the differences in enthalpy and entropy associated with movements between the stationary and mobile phases) derived from data acquired experimentally in separations under isothermal conditions at temperatures spanning the range covered by the temperature programs in ten-degree increments. The columns used for this purpose were capillary columns containing polydimethylsiloxane-based stationary phases with three degrees of phenyl substitution (0%, 5%, and 50%). Predicted values were mostly within 1% of experimentally determined values, implying that the method is stable and precise.
Place, publisher, year, edition, pages
2007. Vol. 389, no 3, 941-950 p.
Gas chromatography, Polycyclic aromatic hydrocarbons, n-Alkanes, Retention time, Prediction
Research subject Analytical Chemistry
IdentifiersURN: urn:nbn:se:su:diva-24549DOI: 10.1007/s00216-007-1528-0OAI: oai:DiVA.org:su-24549DiVA: diva2:197773