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Related Experiment Video

Updated: Jul 13, 2026

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

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

Published on: December 4, 2021

A strategy to develop fast RP-HPLC methods using monolithic silica columns.

Sami El Deeb¹, Lutz Preu, Hermann Wätzig

¹Institute of Pharmaceutical Chemistry, TU Braunschweig, Braunschweig, Germany.

Journal of Separation Science

|July 13, 2007

Summary

This study presents a method development strategy for monolithic silica columns in reversed-phase high-performance liquid chromatography (RP HPLC). It enables faster separations, especially for complex basic mixtures, without damaging the column.

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Improved Polymerase Chain Reaction-restriction Fragment Length Polymorphism Genotyping of Toxic Pufferfish by Liquid Chromatography/Mass Spectrometry

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Area of Science:

Analytical Chemistry
Chromatography

Background:

Monolithic silica columns offer high permeability and performance advantages over conventional columns.
Method transferability and development strategies for monolithic columns require adaptation.

Purpose of the Study:

To propose a clear and updated strategy for reversed-phase high-performance liquid chromatography (RP HPLC) method development using monolithic silica columns.
To demonstrate the applicability of this strategy for diverse sample types, including complex basic mixtures.

Main Methods:

Investigated the influence of key parameters: flow rate, column length, mobile phase composition, pH, and temperature.
Applied high isocratic flow rates enabled by monolithic column permeability.
Detailed the method development process, including the use of a flow program.

Main Results:

Developed a strategy applicable to acidic, basic, and neutral sample compositions.
Demonstrated successful separation of complex basic mixtures without harsh mobile phases.
Highlighted the potential for decreased method development time using high flow rates.

Conclusions:

The proposed strategy facilitates efficient method development on monolithic silica columns.
Monolithic columns are suitable for challenging separations, preserving column integrity.
Optimized method development can be achieved by understanding parameter influences.