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Investigation of the concentration dependence of mass transfer coefficients in reversed-phase liquid chromatography
Hao, Weiqiang; Wang, Junde; Zhang, Xiangmin
关键词Caffeine Chromatographic Models Frontal Analysis Reversed-phase Liquid Chromatography Surface Diffusivity
刊名JOURNAL OF SEPARATION SCIENCE
2006-12-01
DOI10.1002/jssc.200600224
29期:18页:2745-2758
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Analytical
研究领域[WOS]Chemistry
关键词[WOS]BOVINE SERUM-ALBUMIN ; ANION-EXCHANGE CHROMATOGRAPHY ; FRONTAL ANALYSIS ; TRANSFER KINETICS ; BAND PROFILES ; NONLINEAR CHROMATOGRAPHY ; AFFINITY-CHROMATOGRAPHY ; 1-INDANOL ENANTIOMERS ; CELLULOSE TRIACETATE ; PEAK ASYMMETRY
英文摘要In order to investigate the concentration dependence of mass transfer coefficients in RPLC, experimental breakthrough curves obtained by staircase frontal analysis (FA) were fitted to the simplified models such as multiplate (MP) model, equilibrium dispersive (ED) model, and transport model, and the sophisticated models such as lumped pore diffusion (POR) model and general rate (GR) model. The NIP model was used to obtain the initial guesses of the parameters of the ED and the transport models. Then the best values were obtained by minimizing the differences between theoretical and experimental values with a nonlinear fitting procedure. The values of the parameters of the POR and the GR models can be calculated by using the expressions derived from the plate height equations, which was further validated by using the fitting method. It was found that the mass transfer coefficients would depend on the solute concentration. This can be ascribed to the surface diffusivity, which correlates with the concentration and is lumped into the mass transfer coefficients for both simplified and sophisticated models.
语种英语
WOS记录号WOS:000243338800006
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140167
专题中国科学院大连化学物理研究所
作者单位1.Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian, Peoples R China
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Hao, Weiqiang,Wang, Junde,Zhang, Xiangmin. Investigation of the concentration dependence of mass transfer coefficients in reversed-phase liquid chromatography[J]. JOURNAL OF SEPARATION SCIENCE,2006,29(18):2745-2758.
APA Hao, Weiqiang,Wang, Junde,&Zhang, Xiangmin.(2006).Investigation of the concentration dependence of mass transfer coefficients in reversed-phase liquid chromatography.JOURNAL OF SEPARATION SCIENCE,29(18),2745-2758.
MLA Hao, Weiqiang,et al."Investigation of the concentration dependence of mass transfer coefficients in reversed-phase liquid chromatography".JOURNAL OF SEPARATION SCIENCE 29.18(2006):2745-2758.
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