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Related Concept Videos

High-Performance Liquid Chromatography: Introduction01:11

High-Performance Liquid Chromatography: Introduction

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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.
In HPLC, two phases play a critical role in the separation process:
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Optimizing Chromatographic Separations01:15

Optimizing Chromatographic Separations

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Optimizing chromatographic separations is crucial for obtaining clean separations in a minimum amount of time. Optimization is required for several factors, including kinetic effects related to band broadening, plate height, capacity factor, and separation factor.
Band broadening refers to spreading solute bands as they travel through the column. This broadening can impact resolution. Plate height (H) represents the length required for one theoretical plate. A lower plate height corresponds to...
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Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

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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...
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Principles Of Column Chromatography01:13

Principles Of Column Chromatography

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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...
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High-Performance Liquid Chromatography: Elution Process01:05

High-Performance Liquid Chromatography: Elution Process

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In High-Performance Liquid Chromatography (HPLC), the elution process is critical to the separation of analytes and the quality of chromatographic results. Elution describes how compounds move through the column and separate based on their interactions with the mobile and stationary phases. This process determines the resolution, peak shape, and retention times in the chromatogram, which are essential for identifying and quantifying components in complex mixtures. Understanding the elution...
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High-Performance Liquid Chromatography: Instrumentation00:57

High-Performance Liquid Chromatography: Instrumentation

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High-performance liquid chromatography, or HPLC, is an analytical technique that separates liquid samples under high pressures. An HPLC instrument consists of glass bottles for storing solvents called mobile phase reservoirs. HPLC-grade solvents are used to maintain high purity, and the dissolved gases are removed using a degasser, such as a vacuum pumping system or sparging with helium. The solvents are then pumped into the analytical column using a screw-driven syringe or reciprocating pumps.
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Related Experiment Video

Updated: Jan 10, 2026

Curtain Flow Column: Optimization of Efficiency and Sensitivity
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Fundamental Kinetic Studies for Understanding Chiral Separations in High-Performance Liquid Chromatography.

Simona Felletti1, Chiara De Luca2, Martina Catani2

  • 1Department of Environmental and Prevention Sciences, University of Ferrara, Ferrara, Italy.

Methods in Molecular Biology (Clifton, N.J.)
|November 22, 2025
PubMed
Summary

Chiral recognition is complex, with enantiomers needing specific interactions. Kinetic studies help understand slow chiral separations and improve chromatographic efficiency.

Keywords:
Chiral liquid chromatographyEnantiomers separationvan Deemter curve

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Area of Science:

  • Analytical Chemistry
  • Separation Science

Background:

  • Chiral recognition relies on specific analyte-selector interactions.
  • Slow enantiorecognition can decrease chromatographic efficiency.

Purpose of the Study:

  • Investigate the phenomena behind slow chiral separations.
  • Enhance understanding of chiral separation mechanisms.

Main Methods:

  • Kinetic investigations.
  • Chromatographic analysis.

Main Results:

  • Identified factors influencing enantiorecognition kinetics.
  • Demonstrated the utility of kinetic studies in optimizing separations.

Conclusions:

  • Kinetic studies are crucial for understanding and improving chiral separations.
  • Proper kinetic analysis can enhance chromatographic efficiency.