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Capillary Electrophoresis: Applications

Capillary Electrophoresis: Applications

Capillary electrophoretic separations offer various modes, each with unique applications. These modes include capillary zone electrophoresis, capillary gel electrophoresis, capillary array electrophoresis, capillary isoelectric focusing, capillary isotachophoresis, micellar electrokinetic chromatography, and capillary electrochromatography.
Capillary zone electrophoresis (CZE) separates ionic components based on their electrophoretic mobility. It has been used to separate proteins, amino acids,...

Capillary Electrophoresis: Instrumentation

Capillary Electrophoresis: Instrumentation

Capillary electrophoresis instrumentation typically consists of several key components. A high-voltage power supply generates the electric field necessary for the separation by connecting to an anode (the positively charged electrode) and a cathode (the negatively charged electrode) located in buffer reservoirs at each end of the capillary tube. The system includes a sample vial, a fused silica capillary tube coated with polyimide for mechanical strength through which the sample components...

Electrophoresis: Overview

Electrophoresis: Overview

Electrophoresis is a powerful analytical separation technique that relies on the differential migration of charged species when subjected to an electric field. The core strength of electrophoresis lies in its ability to separate high-molecular-weight species in complex mixtures. It has found widespread use in biochemistry, molecular biology, and analytical chemistry, allowing the separation of compounds like amino acids, nucleotides, carbohydrates, and proteins with excellent resolution.
There...

Affinity Chromatography

Affinity Chromatography

Affinity chromatography is a powerful technique extensively utilized for separating and purifying specific biomolecules from complex mixtures. It capitalizes on the highly selective binding between an analyte and its counterpart, such as antibody-antigen interactions. The counterpart is immobilized on the stationary phase, forming an affinity column. The stationary phase typically consists of solid support, such as agarose or porous glass beads, immobilizing the affinity ligand. The mobile...

Ion-Exchange Chromatography

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...

Immunoprecipitation

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Chromatin Immunoprecipitation
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Updated: Jun 17, 2026

Procedure and Key Optimization Strategies for an Automated Capillary Electrophoretic-based Immunoassay Method

Procedure and Key Optimization Strategies for an Automated Capillary Electrophoretic-based Immunoassay Method

Published on: September 10, 2017

[Development of immunoaffinity capillary electrophoresis].

Hongxu Chen¹, Xinxiang Zhang

¹Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.

Se Pu = Chinese Journal of Chromatography

|January 16, 2010

Summary

Immunoaffinity capillary electrophoresis (IACE) offers high specificity and efficiency for analyzing complex samples. This review covers advancements in homogenous capillary electrophoresis immunoassay (CEIA) and IACE techniques.

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Procedure and Key Optimization Strategies for an Automated Capillary Electrophoretic-based Immunoassay Method

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Highly Sensitive and Quantitative Detection of Proteins and Their Isoforms by Capillary Isoelectric Focusing Method

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Area of Science:

Analytical Chemistry
Biochemistry
Immunotechnology

Context:

Complex sample analysis presents significant challenges in traditional methods.
Immunoassays and capillary electrophoresis offer complementary strengths for sensitive detection.
Trace-level detection requires highly sensitive and specific analytical techniques.

Purpose:

To review the research progress of homogenous capillary electrophoresis immunoassay (CEIA) and immunoaffinity capillary electrophoresis (IACE).
To highlight the capabilities of IACE for analyzing complicated samples.
To showcase advancements driven by the author's research group.

Summary:

Immunoaffinity capillary electrophoresis (IACE) integrates immunoassay specificity with capillary electrophoresis efficiency.
The technique offers high separation efficiency, rapid analysis, and low sample consumption.
Coupling with laser-induced fluorescence detection and immuno-enrichment enhances sensitivity for trace detection.

Impact:

Provides a comprehensive overview of CEIA and IACE methodologies.
Demonstrates the potential of IACE for sensitive and specific analysis of complex matrices.
Informs future research directions in immuno-analytical techniques.