Related Experiment Video
Updated: Jul 7, 2026
07:11
Automated HPLC Separation Using LC-Mate: An Integrated Repetitive Autosampler and Fraction Collector for Microscale Purification
Published on: February 27, 2026
Serial coupled columns reversed-phase separations in high-performance liquid chromatography. Tool for analysis of
Miguel Herrero1, Francesco Cacciola, Paola Donato
1Dipartimento Farmaco-chimico, Facoltà di Farmacia, Università di Messina, Viale Annunziata, 98168 Messina, Italy.
Journal of Chromatography. A
|February 29, 2008
Summary
Serial column coupling enhances high-performance liquid chromatography (HPLC) for complex carotenoid analysis. This method offers superior separation power and resolution for natural product analysis, outperforming conventional techniques.
Area of Science:
- Analytical Chemistry
- Natural Product Analysis
- Chromatography
Background:
- High-performance liquid chromatography (HPLC) is crucial for carotenoid analysis.
- Complex natural samples often challenge conventional HPLC's separation capabilities.
- Existing methods may lack sufficient resolution for intricate matrices.
Purpose of the Study:
- To investigate serial column coupling as an advanced HPLC technique for carotenoid analysis.
- To evaluate this method against conventional LC and comprehensive two-dimensional LC.
- To analyze carotenoids in complex natural matrices.
Main Methods:
- Serial coupling of multiple HPLC columns, including C30 stationary phases.
- Optimization of separation parameters like stationary phase selection and high-temperature applications.
- Comparison of peak capacity and resolution with single-column and 2D-LC systems.
Main Results:
- Serial coupling of two C30 columns significantly increased separation power, resolution, and peak capacity.
- Achieved a peak capacity of 79 using two serially coupled C30 columns, compared to 61 with a single column.
- Demonstrated similar improvements with other serial column configurations studied.
Conclusions:
- Serial column coupling is a novel and effective strategy for enhancing carotenoid separation in complex samples.
- This methodology offers a powerful alternative to conventional LC and 2D-LC for natural product analysis.
- The developed technique is broadly applicable to diverse sample types requiring detailed carotenoid profiling.
Related Concept Videos
01:11High-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.
In HPLC, two phases play a critical role in the separation process:
In HPLC, two phases play a critical role in the separation process:
01:05High-Performance Liquid Chromatography: Elution Process
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...
00:57High-Performance Liquid Chromatography: Instrumentation
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.
01:17Gas 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...
For an analyte to remain on the column for a sufficient amount of time, it must exhibit some level of compatibility (or...
01:09Ion-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...
01:13Principles 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...