Equilibrium theory analysis of liquid chromatography with non-constant velocity

被引：7
|
作者：
Ortner, Franziska [1 ]
Joss, Lisa [1 ]
Mazzotti, Marco [1 ]
机构：
[1] Swiss Fed Inst Technol, Inst Proc Engn, CH-8092 Zurich, Switzerland
来源：
JOURNAL OF CHROMATOGRAPHY A | 2014年 / 1373卷
关键词：
Equilibrium theory; Velocity variations; Liquid chromatography; Mathematical modeling; FIXED-BED ADSORPTION; ISOTHERM;
D O I：
10.1016/j.chroma.2014.11.026
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
In liquid chromatography, adsorption and desorption lead to velocity variations within the column if the adsorbing compounds make up a high volumetric ratio of the mobile phase and if there is a substantial difference in the adsorption capacities. An equilibrium theory model for binary systems accounting for these velocity changes is derived and solved analytically for competitive Langmuir isotherms. Characteristic properties of concentration and velocity profiles predicted by the derived model are illustrated by two exemplary systems. Applicability of the model equations for the estimation of isotherm parameters from experimental data is investigated, and accurate results are obtained for systems with one adsorbing and one inert compound, as well as for systems with two adsorbing compounds. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：131 / 140
页数：10
相关论文
共 50 条
  • [1] Soliton with non-constant velocity
    Zenchuk, AI
    MATHEMATICS AND COMPUTERS IN SIMULATION, 2003, 62 (1-2) : 191 - 201
  • [2] Stability of non-constant equilibrium states in a finite sample of ferroelectric liquid crystal
    Anderson, DA
    Stewart, IW
    INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE, 2001, 39 (11) : 1191 - 1215
  • [3] Periodic error quantification for non-constant velocity motion
    Schmitz, Tony L.
    Adhia, Chirag
    Kim, Hyo Soo
    PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY, 2012, 36 (01): : 153 - 157
  • [4] ANALYSIS OF A FLEXIBLY MOUNTED SHAFT INCORPORATING A NON-CONSTANT VELOCITY COUPLING WITH DYNAMIC MISALIGNMENT
    Johnson, David R.
    Wang, K. W.
    PROCEEDINGS OF THE ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE 2011, VOL 1, PTS A AND B: 23RD BIENNIAL CONFERENCE ON MECHANICAL VIBRATION AND NOISE, 2012, : 1023 - 1032
  • [5] Vibration and stability analysis of drivelines with self-excitation of non-constant velocity couplings
    SoltanRezaee, Masoud
    Ghazavi, Mohammad-Reza
    Najafi, Asghar
    Liao, Wei-Hsin
    MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES, 2023, 51 (08) : 4731 - 4754
  • [6] NON-EQUILIBRIUM THEORY OF GAS-LIQUID CHROMATOGRAPHY
    KHAN, MA
    NATURE, 1960, 186 (4727) : 800 - 801
  • [7] NON-CONSTANT GAMMA
    STIGTER, CJ
    JOURNAL OF APPLIED METEOROLOGY, 1976, 15 (12): : 1326 - 1327
  • [8] Stability of non-constant equilibrium solutions for Euler-Maxwell equations
    Peng, Yue-Jun
    JOURNAL DE MATHEMATIQUES PURES ET APPLIQUEES, 2015, 103 (01): : 39 - 67
  • [9] COMPUTER-SIMULATIONS OF SCHOTTKY CONTACTS WITH A NON-CONSTANT RECOMBINATION VELOCITY
    NYLANDER, JO
    MASSZI, F
    SELBERHERR, S
    BERG, S
    SOLID-STATE ELECTRONICS, 1989, 32 (05) : 363 - 367
  • [10] Multi-agent Path Planning with Non-constant Velocity Motion
    Kou, Ngai Meng
    Peng, Cheng
    Yan, Xiaowei
    Yang, Zhiyuan
    Liu, Heng
    Zhou, Kai
    Zhao, Haibing
    Zhu, Lijun
    Xu, Yinghui
    AAMAS '19: PROCEEDINGS OF THE 18TH INTERNATIONAL CONFERENCE ON AUTONOMOUS AGENTS AND MULTIAGENT SYSTEMS, 2019, : 2069 - 2071
12345