Počet záznamů: 1
Krichevskii parameters of heavy n-alkanes in carbon dioxide: comparison of the results from solubility measurements and from supercritical fluid chromatography
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SYSNO ASEP 0162477 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Krichevskii parameters of heavy n-alkanes in carbon dioxide: comparison of the results from solubility measurements and from supercritical fluid chromatography Tvůrce(i) Roth, Michal (UIACH-O) RID, ORCID Zdroj.dok. Fluid Phase Equilibria. - : Elsevier - ISSN 0378-3812
Roč. 212, 1-2 (2003), s. 1-9Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova dilute solution in supercritical solvent ; partial molar volume ; cubic equation of state Vědní obor RIV CF - Fyzikální chemie a teoretická chemie CEP GA203/02/1093 GA ČR - Grantová agentura ČR GA203/02/0023 GA ČR - Grantová agentura ČR CEZ AV0Z4031919 - UIACH-O Anotace Thermodynamic properties of dilute binary mixtures near the solventŽs critical point are largely governed by the Krichevskii parameter. In binary mixtures of components of comparable volatilities, the Krichevskii parameter can be determined from exact relationships connecting it to the initial slopes of the critical line. In highly asymmetric mixtures such as those encountered in supercritical fluid extraction, the exact procedure is usually not feasible, and the Krichevskii parameter has to be estimated from other properties employing a suitable thermodynamic model. In this contribution, the Krichevskii parameters of C21 to C40 n-alkanes in carbon dioxide are derived from retention data of the n-alkanes in supercritical fluid chromatography (SFC), and the results are compared to the literature values obtained from solubility data. Pracoviště Ústav analytické chemie Kontakt Iveta Drobníková, drobnikova@iach.cz, Tel.: 532 290 234 Rok sběru 2004
Počet záznamů: 1