Countercurrent separation of natural products: an update

JB Friesen, JB McAlpine, SN Chen… - Journal of natural …, 2015 - ACS Publications
This work assesses the current instrumentation, method development, and applications in
countercurrent chromatography (CCC) and centrifugal partition chromatography (CPC) …

Recent progress in separation prediction of counter‐current chromatography

Y Guo, S Tong, K Zhang, J Yan - Journal of Separation Science, 2021 - Wiley Online Library
As a liquid‐liquid partition chromatography, counter‐current chromatography has
advantages in large sample loading capacity without irreversible adsorption, which has …

Controlled-cycle pulsed liquid–liquid chromatography. A modified version of Craig's counter-current distribution

AE Kostanyan, AA Voshkin, NV Kodin - Journal of Chromatography A, 2011 - Elsevier
A new liquid–liquid chromatography technique developed from a combination of controlled-
cycle operation and a pulsed-mixing technique is suggested and validated. The controlled …

Intermittent counter-current extraction—Equilibrium cell model, scaling and an improved bobbin design

P Hewitson, I Sutherland, AE Kostanyan… - … of Chromatography A, 2013 - Elsevier
This paper describes an equilibrium cell model for intermittent counter-current extraction that
is analytically solved for the first time for continuous sample injection between a pair of …

Steady-state and non-steady state operation of counter-current chromatography devices

AE Kostanyan, SN Ignatova, IA Sutherland… - … of Chromatography A, 2013 - Elsevier
Different variants of separation processes based on steady-state (continuous sample
loading) and non-steady state (batch) operating modes of CCC columns have been …

Separation of honokiol and magnolol by intermittent counter-current extraction

A Peng, H Ye, J Shi, S He, S Zhong, S Li… - … of Chromatography A, 2010 - Elsevier
Recently, intermittent counter-current extraction (ICcE) has been developed and shown its
advantage in improving resolution between targeted compounds. However, how to choose …

Controlled-cycle counter-current chromatography

AE Kostanyan - Journal of Chromatography A, 2008 - Elsevier
The application of the technique of controlled-cycle operation to counter-current
chromatography is suggested and evaluated. The operating cycle as applied to a …

Analysis of cyclic liquid chromatography

AE Kostanyan, AA Voshkin - Theoretical Foundations of Chemical …, 2011 - Springer
A new method for the chromatographic separation of liquid mixtures is considered which is
distinguished by a discrete (cyclic) supply of the mobile phase to a chromatographic …

Intermittent counter-current extraction—Effect of the key operating parameters on selectivity and throughput

P Hewitson, S Ignatova, I Sutherland - Journal of Chromatography A, 2011 - Elsevier
Intermittent counter-current extraction (ICcE) has proved itself as a method for splitting
compounds into streams and/or concentrating compounds in the column. In this paper a …

Solvent extraction of weak acids in binary extractant systems

AI Kholkin, VV Belova, YA Zakhodyaeva… - Separation Science …, 2013 - Taylor & Francis
The interphase distribution of weak acids in systems involving salts of quaternary
ammonium bases with organic acids (binary extractants) has been analyzed. Significant …