期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1145, 期 1-2, 页码 1-50出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2006.12.019
关键词
inverse gas chromatography; enthalpy and entropy of adsorption; specific retention volumes; second adsorption virial coefficients; Kovats retention indices; multicomponent adsorption; adsorbate-adsorbent and adsorbate-adsorbate interactions
Adsorbate-adsorbent and adsorbate-adsorbate interactions having decisive influence on the distribution of adsorbate between gas-solid phases in inverse gas chromatography (IGC) have been thermodynamically explained. Specific retention volumes, second adsorption virial coefficients and Kovats retention indices, likewise their dependencies on column temperature, T, number of carbon atoms, n(C) (or methylene groups -CH(2)-) and mutual ones have been briefly presented. The results of the molar differential enthalpy and entropy of adsorption obtained for different carbon materials employing inverse gas chromatography have been collected and interpreted. An attempt has been made to elucidate abnormal behaviour of the specific and net retention volumes, the second adsorption virial coefficients and the Kovats retention indices, e.g., the magnitudes on which the values of the afore-mentioned thermodynamic values have been determined and compared. The detailed analysis of the errors associated with the experimental parameters necessary for calculating retention volumes, second adsorption virial coefficients and Kovats retention indices has been presented. (c) 2006 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据