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Related Concept Videos

Principles Of Column Chromatography01:13

Principles Of Column Chromatography

The chromatography technique was first invented in 1901 by Michael S. Tswett, a Russian botanist, to separate plant pigments using organic solvents. Further, in 1941, Archer John Porter Martin and R. L. M. Synge modified the technique by packing silica gel into a column. A mixture of amino acids was then separated on the packed column using chloroform and water mixture as the mobile phase. This was the first report on column chromatography. At present, column chromatography is a widely used...
Ion-Exchange Chromatography01:09

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...
Chromatography: Introduction01:10

Chromatography: Introduction

Chromatography is a technique used to separate compounds based on differences of partitioning between two phases, the stationary phase and the mobile phase.
The phase in which the compounds linger or on which the compounds adsorb is called the stationary phase, whereas the mobile phase is the solvent that carries the solutes to be analyzed. In traditional column chromatography, the mixture flows through the stationary phase, and the compounds partition between the stationary and mobile phases...
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...
Chromatographic Methods: Classification01:12

Chromatographic Methods: Classification

Chromatographic techniques are classified in three ways: the classification is based on the physical state of the stationary and mobile phases, how the mobile phase and the stationary phase contact each other, or through the chemical or physical processes that isolate the components of the sample. Typically, the mobile phase is either a liquid or gas, while the stationary phase is either a solid or a liquid layer applied to a solid surface.
Chromatographic techniques are typically named by...
Gas Chromatography: Types of Columns and Stationary Phases01:17

Gas Chromatography: Types of Columns and Stationary Phases

Gas chromatography (GC) relies on stationary phases to separate and analyze components in a sample. There are two main types of stationary phases: liquid and solid. Liquid stationary phases are non-volatile, thermally stable, and chemically inert liquids coated onto the column. Solid stationary phases are particles of adsorbent material, such as silica gel or molecular sieves.
For an analyte to remain on the column for a sufficient amount of time, it must exhibit some level of compatibility (or...

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Related Experiment Video

Updated: Jun 26, 2026

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

General methods for flash chromatography using disposable columns.

William C Stevens1, Daniel C Hill

  • 1Exelixis, Inc., San Diego, CA, USA. bstevens02@earthlink.net

Molecular Diversity
|January 14, 2009
PubMed
Summary
This summary is machine-generated.

New guidelines simplify normal-phase flash chromatography, translating thin-layer chromatography (TLC) results for efficient column selection. This approach conserves solvents, silica, time, and money in chemical separations.

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Last Updated: Jun 26, 2026

Simple In-House Ultra-High Performance Capillary Column Manufacturing with the FlashPack Approach
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Area of Science:

  • Analytical Chemistry
  • Organic Chemistry

Background:

  • Traditional normal-phase flash chromatography guidelines are outdated due to technological advancements.
  • The increasing use of disposable columns necessitates updated, practical methodologies.

Purpose of the Study:

  • To develop simplified guidelines for normal-phase flash chromatography.
  • To enable accurate translation of thin-layer chromatography (TLC) data into flash chromatography conditions.
  • To reduce resource consumption (solvents, silica, time, money) in chromatographic separations.

Main Methods:

  • Condensed years of chromatography experience into actionable guidelines.
  • Focused on translating thin-layer chromatography (TLC) results.
  • Provided strategies for selecting appropriate columns for both isocratic and gradient flash chromatography.

Main Results:

  • Established practical guidelines for normal-phase flash chromatography.
  • Demonstrated a method for effectively using TLC data to predict flash chromatography performance.
  • Showcased how to optimize column selection for improved efficiency.

Conclusions:

  • The developed guidelines offer a valuable tool for researchers performing flash chromatography.
  • Implementation of these guidelines can lead to significant savings in materials and operational costs.
  • Updated methodologies are crucial for efficient and sustainable chemical purification techniques.