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Related Experiment Video

Updated: May 16, 2026

Automated Hydrophobic Interaction Chromatography Column Selection for Use in Protein Purification

Automated Hydrophobic Interaction Chromatography Column Selection for Use in Protein Purification

Published on: September 21, 2011

High-resolution monolithic columns--a new tool for effective and quick separation.

Hana Sklenářová¹, Petr Chocholouš, Petra Koblová

¹Department of Analytical Chemistry, Faculty of Pharmacy, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic.

Analytical and Bioanalytical Chemistry

|December 5, 2012

Summary

This study compares three high-performance liquid chromatography monolithic columns. The newest generation Chromolith® HighResolution column demonstrates superior separation efficiency and performance for analyzing ascorbic acid, paracetamol, and caffeine.

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Automated Hydrophobic Interaction Chromatography Column Selection for Use in Protein Purification

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

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Area of Science:

Analytical Chemistry
Chromatography Science

Background:

High-performance liquid chromatography (HPLC) relies on advanced column technology for efficient separations.
Monolithic silica columns offer unique advantages in flow dynamics and surface area compared to traditional packed beds.
Evolution of monolithic column design aims to improve separation efficiency and reduce analysis time.

Purpose of the Study:

To compare the performance of three generations of commercial HPLC monolithic silica columns.
To evaluate separation efficiency, working pressure, symmetry factor, and resolution.
To highlight the advantages of the newest generation Chromolith® HighResolution monolithic column.

Main Methods:

Comparative analysis of three monolithic HPLC columns: Onyx™ (1st gen), Chromolith® Performance (narrow), and Chromolith® HighResolution (next gen).
Separation of ascorbic acid, paracetamol, and caffeine under isocratic conditions (10:90 acetonitrile-phosphoric acid, pH 2.80).
Evaluation of key chromatographic parameters including theoretical plates, theoretical plate height, van Deemter curves, pressure, symmetry factor, and resolution.

Main Results:

The Chromolith® HighResolution column exhibited superior separation efficiency and resolution compared to the older monolithic columns.
Analysis of van Deemter curves indicated optimized performance for the high-resolution column.
The newest generation column demonstrated advantages in handling complex separations with improved peak symmetry and lower operating pressures.

Conclusions:

The Chromolith® HighResolution monolithic column represents a significant advancement in HPLC technology.
This next-generation column provides enhanced performance for the separation of key analytes.
The study validates the benefits of the Chromolith® HighResolution column over previous monolithic sorbent generations.