期刊
JOURNAL OF LIQUID CHROMATOGRAPHY & RELATED TECHNOLOGIES
卷 42, 期 1-2, 页码 16-30出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10826076.2019.1570522
关键词
Core-shell particles; Liquid chromatography; mathematical models; moment analysis; matching relations; semi-analytical solutions
This article presents analytical solutions of the general rate model (GRM), the lumped kinetic model (LKM), and the simpler equilibrium dispersive model (EDM) for core-shell particles and linear adsorption isotherms. The solutions in the Laplace domain are applied to derive analytical expressions for the temporal moments of these models. The results provide relations between the model specific kinetic parameters by matching one or more of the temporal moments. Several case studies are considered for illustration. The results show that simpler models are in many cases as good as the most detailed GRM if their kinetic parameters fulfill the matching relations. Thus, it is possible to reliably predict elution profiles using the simpler models. The derived analytical expressions can also be utilized to efficiently estimate model parameters from experimentally observed elution profiles to further optimize core-shell particles and to identify suitable column sizes and operating conditions.
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