scholarly journals Polymeric Ionic Liquids Derived from L-Valine for the Preparation of Highly Selective Silica-Supported Stationary Phases in Gas Chromatography

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2348 ◽  
Author(s):  
Jorge González-Rodríguez ◽  
Adriana Valls ◽  
Pilar Arias Abrodo ◽  
María Dolores Gutiérrez Álvarez ◽  
Jaime González-Álvarez ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Stationary Phases ◽  
Crosslinking Agent ◽  
Solvation Parameter Model ◽  
Retention Behavior ◽  
Thermal Stabilities ◽  
Crosslinking Degree ◽  
Polymeric Ionic Liquid ◽  
Composite Systems ◽  
Solvation Parameter

A series of silica-supported polymeric ionic liquid (PIL)-based stationary phases derived from a vinylic L-valine ionic liquid monomer and divinylbenzene (DVB) as the crosslinking agent have been prepared and studied as gas chromatographic stationary phases. These coated gas chromatographic columns exhibited good thermal stabilities (230–300 °C) and high efficiencies (1700–2700 plates/m), and were characterized using a linear solvation parameter model in order to understand the effects of the amount of DVB on the features of the resulting composite systems. Their retention behavior and separation efficiencies were demonstrated using the Grob test. By tuning the crosslinking degree for the IL-derived stationary phase, the separation selectivity and resolution of different compounds were improved. The different retention behaviors observed for many analytes indicate that these stationary phases may be applicable as new types of GC stationary phases.

Application of Mobile Phases Containing Ionic Liquid for HPLC Analysis of Selected Isoquinoline Alkaloids

2017 ◽  
Vol 100 (6) ◽  
pp. 1652-1659 ◽  
Author(s):  
Anna Petruczynik ◽  
Justyna Misiurek ◽  
Tomasz Tuzimski ◽  
Monika Waksmundzka-Hajnos
Keyword(s):  
Ionic Liquid ◽  
Stationary Phases ◽  
Reversed Phase ◽  
System Efficiency ◽  
Organic Modifier ◽  
Optimal Conditions ◽  
Retention Behavior ◽  
Isoquinoline Alkaloids ◽  
Mobile Phases ◽  
Chemical Groups

Abstract An HPLC procedure on a polar reversed-phase column with mobile phases containing ionic liquid (IL) was developed for the analysis of selected alkaloids from different chemical groups. We aimed to obtain optimal conditions for the separation of alkaloids because widely used silica-based stationary phases exhibit a silanol effect, rendering analysis of basic analytes extremely difficult. Retention, separation selectivity, peak symmetry, and system efficiency were examined in various eluent systems containing different concentrations of IL and acetonitrile. The obtained results revealed substantial influence from the concentrations of IL, the organic modifier, and temperature on the retention behavior of the investigated alkaloids. The most selective and efficient chromatographic systems were applied for the analysis of several alkaloids in a plant extract.

Preparation of monodisperse porous polymeric ionic liquid microspheres and their application as stationary phases for HPLC

Talanta ◽  
2020 ◽  
Vol 208 ◽  
pp. 120462 ◽  
Author(s):  
Qiaohong Peng ◽  
Yue Wu ◽  
Hailin Cong ◽  
Youqing Shen ◽  
Khalid Mahmood ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Stationary Phases ◽  
Polymeric Ionic Liquid

Application of the solvation parameter model to poly(methylcyanopropylsiloxane) stationary phases

2006 ◽  
Vol 1122 (1-2) ◽  
pp. 230-241 ◽  
Author(s):  
A.M. Tello ◽  
R. Lebrón-Aguilar ◽  
J.E. Quintanilla-López ◽  
J.M. Pérez-Parajón ◽  
J.M. Santiuste
Keyword(s):  
Stationary Phases ◽  
Solvation Parameter Model ◽  
Solvation Parameter

Factors Influencing the Isothermal Retention Indices of 51 Solutes on 12 Stationary Phases of Different Polarity: Applicability of the Solvation Parameter Model

2015 ◽  
Vol 78 (15-16) ◽  
pp. 1071-1081 ◽  
Author(s):  
J. M. Santiuste ◽  
J. E. Quintanilla-López ◽  
R. Becerra ◽  
C. Gutiérrez ◽  
R. Lebrón-Aguilar
Keyword(s):  
Stationary Phases ◽  
Retention Indices ◽  
Solvation Parameter Model ◽  
Factors Influencing ◽  
Solvation Parameter
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