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Related Concept Videos

Silica Gel Column Chromatography: Overview01:10

Silica Gel Column Chromatography: Overview

Silica gel column chromatography is a technique for separating compounds using a column packed with silica gel as the stationary phase. This method relies on differences in the polarity of compounds. Based on their polarities, compounds move between the stationary phase (silica gel) and the mobile phase (the solvent), forming discrete bands in the column.
Polar components tend to bind strongly to the silica gel, causing them to move slowly through the column. In contrast, nonpolar compounds...
Capillary Electrophoresis: Applications01:30

Capillary Electrophoresis: Applications

Capillary electrophoretic separations offer various modes, each with unique applications. These modes include capillary zone electrophoresis, capillary gel electrophoresis, capillary array electrophoresis, capillary isoelectric focusing, capillary isotachophoresis, micellar electrokinetic chromatography, and capillary electrochromatography.
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Ion-Exchange Chromatography

Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
Capillary Electrophoresis: Instrumentation01:20

Capillary Electrophoresis: Instrumentation

Capillary electrophoresis instrumentation typically consists of several key components. A high-voltage power supply generates the electric field necessary for the separation by connecting to an anode (the positively charged electrode) and a cathode (the negatively charged electrode) located in buffer reservoirs at each end of the capillary tube. The system includes a sample vial, a fused silica capillary tube coated with polyimide for mechanical strength through which the sample components...
Supercritical Fluid Chromatography01:18

Supercritical Fluid Chromatography

Supercritical fluid chromatography (SFC) provides a beneficial substitute for gas chromatography (GC) and liquid chromatography (LC) for certain samples because it merges the top attributes of both techniques. SFC allows the separation and analysis of compounds that GC or LC does not easily manage. These compounds are traditionally nonvolatile or thermally unstable, making GC unsuitable and lacking functional groups required for HPLC analysis.
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High-Performance Liquid Chromatography: Introduction01:11

High-Performance Liquid Chromatography: Introduction

High-performance liquid chromatography(HPLC), formerly referred to as High-pressure liquid chromatography, is a powerful technique used to separate, identify, and quantify components in complex mixtures. The term "high pressure" refers to using high pressure to push the liquid mobile phase through the tightly packed columns.
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Curtain Flow Column: Optimization of Efficiency and Sensitivity
06:44

Curtain Flow Column: Optimization of Efficiency and Sensitivity

Published on: June 12, 2016

Fluorinated monolithic column for CEC.

Aree Choodum1, Norman William Smith, Panote Thavarungkul

  • 1Department of Applied Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand; Trace Analysis and Biosensor Research Center, Prince of Songkla University, Hat Yai, Songkhla, Thailand. aree.c@psu.ac.th, choodum@gmail.com.

Journal of Separation Science
|March 10, 2011
PubMed
Summary
This summary is machine-generated.

A novel fluorinated cationic monolith was developed for chromatography, offering improved separation of phenolic compounds, aromatic hydrocarbons, and fluorine-containing analytes. This advanced material provides high efficiency and stability, overcoming limitations of traditional particle-based phases.

Keywords:
Fluorinated monolithMaterial technologyMonolithic materialSeparate CEC and analytical technique

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Last Updated: Jun 3, 2026

Curtain Flow Column: Optimization of Efficiency and Sensitivity
06:44

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Published on: June 12, 2016

Simple In-House Ultra-High Performance Capillary Column Manufacturing with the FlashPack Approach
13:36

Simple In-House Ultra-High Performance Capillary Column Manufacturing with the FlashPack Approach

Published on: December 4, 2021

Area of Science:

  • Analytical Chemistry
  • Chromatography
  • Materials Science

Background:

  • Particle-based fluorinated stationary phases present drawbacks in chromatographic separations.
  • Developing alternative stationary phases is crucial for enhanced analytical performance.

Purpose of the Study:

  • To synthesize a novel fluorinated cationic monolith for chromatographic applications.
  • To evaluate the performance of the synthesized monolith in separating various organic compounds.

Main Methods:

  • In situ copolymerization of perfluorododecyl acrylate, ethylene dimethacrylate, and a quaternary amine acrylic monomer.
  • Utilized a tertiary porogenic solvent system (1-propanol, 1-octanol, 1-dodecanol).
  • Thermal initiation for polymerization.

Main Results:

  • The synthesized monolith column exhibited good morphology, permeability, and electroosmotic mobility.
  • Achieved high separation efficiencies (up to 135,000 plate/m) and resolution (up to 2.6).
  • Demonstrated short analysis times (< 12 min) and excellent stability (RSD < 5.0%).

Conclusions:

  • The fluorinated cationic monolith is a promising alternative to particle-based stationary phases.
  • The developed material offers superior chromatographic performance for diverse analytes.
  • This advancement contributes to more efficient and effective analytical separations.