Results 11 to 20 of about 5,042,699 (188)

A Neglected Issue: Stationary Phase Retention Determination of Classic High-Speed Counter-Current Chromatography Solvent Systems

open access: yesSeparations, 2022
Obtaining an ideal solvent system for target compounds is still an obstacle to the wide application of high-speed counter-current chromatography (HSCCC).
Sha Li   +5 more
doaj   +4 more sources

Evaluating Relative Retention of Polar Stationary Phases in Hydrophilic Interaction Chromatography

open access: yesSeparations, 2019
A large number of polar stationary phases with diverse chemistry have been developed for various applications in hydrophilic interaction chromatography (HILIC).
Yong Guo, Nidhi Bhalodia, Bassel Fattal
doaj   +4 more sources

Comparison of Retention Behavior between Supercritical Fluid Chromatography and Normal-Phase High-Performance Liquid Chromatography with Various Stationary Phases

open access: yesMolecules, 2019
The retention behavior of a wide variety of stationary phases was compared in supercritical fluid chromatography (SFC) and normal-phase high-performance liquid chromatography (NP-HPLC).
Tsunehisa Hirose   +3 more
doaj   +4 more sources

Retention of the stationary phase for high‐speed countercurrent chromatography

open access: yesAIChE Journal, 2007
AbstractHigh‐speed countercurrent chromatography (HSCCC) is an emerging technique for preparative purification of a wide variety of solutes. Retention of the stationary phase is a crucial variable which is used for the derivation of the column efficiency, peak resolution, and solute retention.
He, Chao-Hong, Zhao, Chun-Xia
openaire   +4 more sources

Peptide retention time prediction for immobilized artificial membrane phosphatidylcholine stationary phase: method development and preliminary observations [PDF]

open access: yesADMET and DMPK, 2018
Development of the first peptide retention prediction model for immobilized artificial membrane phosphatidylcholine (IAM.PC) stationary phase is reported. 2D LC-MS/MS analysis of a whole cell lysate of S. cerevisiae yielded a retention dataset of ~29,500
Daniel Gussakovsky   +3 more
doaj   +2 more sources

Riboflavin binding protein—Chiral stationary phase: Investigation of retention mechanism

open access: yesChromatographia, 2002
The chiral recognition mechanism of Riboflavin Binding Protein (RfBP) stationary phase has been investigated by studying the influence of temperature on the retention process.
CALLERI, ENRICA   +5 more
openaire   +3 more sources

The hydrodynamics of countercurrent chromatography in J-type centrifuges [PDF]

open access: yes, 2002
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Countercurrent chromatography (CCC) is an advanced liquid-liquid extraction technique that purifies chemical components from complex mixtures.
Wood, Philip Leslie
core   +7 more sources

Retention of opioids and their glucuronides on a combined zwitterion and hydrophilic interaction stationary phase

open access: yesJournal of Chromatography A, 2008
A stationary phase combining zwitterionic ion chromatography and hydrophilic interaction chromatography (ZIC-HILIC) from SeQuant was evaluated for the chromatography of some opiates and their polar metabolites. The effects of mobile phase constitution on retention and resolution were extensively evaluated. Different aspects of mobile phase constitution
S, Vikingsson   +2 more
openaire   +3 more sources

Evaluation and Application of Stationary Phase Selectivity for Drug Analysis [PDF]

open access: yes
Despite the wide range of HPLC stationary phases available for reversed-phase high-performance liquid chromatography (RP-HPLC) and the in-depth studies using probes to highlight differences between them, there is very little in the way of stationary ...
Perera, R. Wimal H.
core   +6 more sources

A New Definition of the Stationary Phase Volume in Mixed-Mode Chromatographic Columns in Hydrophilic Liquid Chromatography

open access: yesMolecules, 2021
Polar columns used in the HILIC (Hydrophilic Interaction Liquid Chromatography) systems take up water from the mixed aqueous–organic mobile phases in excess of the water concentration in the bulk mobile phase.
Pavel Jandera, Tomáš Hájek
doaj   +1 more source

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