Selection of the Mode of Stationary Phases and Columns for Analysis of Pesticides

2015 ◽  
pp. 139-166
Author(s):  
Bogusław Buszewski ◽  
Szymon Bocian
Keyword(s):  
Stationary Phases ◽  
Selection Of

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

Molecules ◽  
2019 ◽  
Vol 24 (13) ◽  
pp. 2425 ◽  
Author(s):  
Tsunehisa Hirose ◽  
Daniel Keck ◽  
Yoshihiro Izumi ◽  
Takeshi Bamba
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Supercritical Fluid ◽  
Supercritical Fluid Chromatography ◽  
High Performance ◽  
Stationary Phases ◽  
Retention Factor ◽  
Normal Phase ◽  
Retention Behavior ◽  
Selection Of

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). We also attempted to elucidate the retention behavior in SFC by investigating the selectivity of the different stationary phases. SFC separation conditions with polar stationary phases, such as silica gel (SL) and diol (Diol) phases, operate via adsorptions that include hydrophilic and ionic interactions similar to those in NP-HPLC. Moreover, non-polar stationary phases, such as pentabromophenyl (PBr), pyrenylethyl (PYE), and octadecyl (C18), could be used despite the non-polar mobile phase conditions, because the dispersion and π-π interactions were stronger in SFC than in HPLC. These results reflect the selectivity of the stationary phase and its retention factor, thus providing useful information for the selection of appropriate stationary phases for particular analytes.

scholarly journals Strategies for Preparation of Chiral Stationary Phases: Progress on Coating and Immobilization Methods

Molecules ◽  
2021 ◽  
Vol 26 (18) ◽  
pp. 5477
Author(s):  
Carla Fernandes ◽  
Joana Teixeira ◽  
Madalena M. M. Pinto ◽  
Maria Elizabeth Tiritan
Keyword(s):  
Stationary Phase ◽  
Chiral Stationary Phase ◽  
Stationary Phases ◽  
Chiral Stationary Phases ◽  
Separation And Purification ◽  
Enantioselective Chromatography ◽  
Synthetic Approaches ◽  
Applied Coating ◽  
Selection Of

Enantioselective chromatography is one of the most used techniques for the separation and purification of enantiomers. The most important issue for a specific successful enantioseparation is the selection of the suitable chiral stationary phase (CSP). Different synthetic approaches have been applied for the preparation of CSPs, which embrace coating and immobilization methods. In addition to the classical and broadly applied coating and immobilization procedures, innovating strategies have been introduced recently. In this review, an overview of different methods for the preparation of coated and immobilized CSPs is described. Updated examples of CSPs associated with the various strategies are presented. Considering that after the preparation of a CSP its characterization is fundamental, the methods used for the characterization of all the described CSPs are emphasized.

Application of information theory and numerical taxonomy to the selection of gas-liquid chromatography stationary phases

1975 ◽  
Vol 47 (13) ◽  
pp. 2168-2174 ◽  
Author(s):  
Arie. Eskes ◽  
Foppe. Dupuis ◽  
Auke. Dijkstra ◽  
Henri. De Clercq ◽  
Desire L. Massart
Keyword(s):  
Information Theory ◽  
Liquid Chromatography ◽  
Numerical Taxonomy ◽  
Stationary Phases ◽  
Gas Liquid Chromatography ◽  
Selection Of
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