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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...

Mass Spectrometry: Complex Analysis

Mass Spectrometry: Complex Analysis

Mass spectrometry is an important technique for the identification of pure compounds. However, it has some limitations for the analysis of complex mixtures, often due to excessive fragmentation making the spectrum too complicated to decipher. Mass spectrometry can be combined with suitable separation methods in sequence, forming hyphenated methods, which are useful in the analysis of complex mixtures.
GC–MS is a powerful hyphenated method commonly used in forensics and environmental...

Electrospray Ionization (ESI) Mass Spectrometry

Electrospray Ionization (ESI) Mass Spectrometry

Higher molecular weight biomolecules are nonvolatile compounds that may decompose before ionizing or vaporizing during mass analysis with conventional electron impact ionization methods. Accordingly, electrospray ionization (ESI) is the favored method for vaporizing and ionizing biomolecules as it circumvents rapid fragmentation and enables the recording of mass signals for the entire biomolecule.
ESI utilizes electrical energy to transfer ions from the liquid phase of the sample into the...

Tandem Mass Spectrometry

Tandem Mass Spectrometry

Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and reduce chemical noise during analyte detection. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called...

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Sheathless Capillary Electrophoresis–Mass Spectrometry for Metabolic Profiling of Biological Samples

Sheathless Capillary Electrophoresis–Mass Spectrometry for Metabolic Profiling of Biological Samples

Published on: October 1, 2016

[Recent developments in capillary electrophoresis-mass spectrometry].

Zhigui Zhou¹, Min Li, Yu Bai

¹College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.

Se Pu = Chinese Journal of Chromatography

|January 16, 2010

Summary

Capillary electrophoresis-mass spectrometry (CE-MS) offers powerful separation and sensitive molecular analysis. This review highlights recent interface advancements and applications in life sciences, food, and pharmaceuticals.

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Area of Science:

Analytical Chemistry
Biochemistry
Biotechnology

Context:

Capillary electrophoresis-mass spectrometry (CE-MS) integrates the separation capabilities of CE with the sensitivity and specificity of MS.
This hybrid technique is crucial for analyzing complex biological and chemical samples.

Purpose:

To review recent advancements in CE-MS interfaces.
To summarize the latest applications of CE-MS in various scientific fields.

Summary:

The review details new developments in the interface technology connecting capillary electrophoresis and mass spectrometry.
It covers recent applications, showcasing the technique's utility in life sciences, food analysis, and pharmaceutical research.

Impact:

Provides an updated overview of CE-MS technology for researchers.
Facilitates the adoption of advanced CE-MS techniques in diverse analytical challenges.
Highlights the growing importance of CE-MS in scientific discovery and quality control.