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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.
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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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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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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.
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Chromatography is a technique used to separate compounds based on differences of partitioning between two phases, the stationary phase and the mobile phase.
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Updated: Apr 16, 2026

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(Deep) eutectic solvents in chromatographic and electromigration techniques.

Qi Zhang1, Haoxiang Meng1, Song Xue2

  • 1School of Pharmacy, Jiangsu University, Zhenjiang 212013, China.

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|April 14, 2026
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Summary
This summary is machine-generated.

(Deep) eutectic solvents ((D)ESs) offer unique properties for separation science, enhancing chromatographic and electromigration techniques. This review details their roles and mechanisms for greener analytical practices.

Keywords:
ChromatographyElectromigration techniquesEutectic solventGreen chemistrySeparation science

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Area of Science:

  • Analytical Chemistry
  • Separation Science

Background:

  • (Deep) eutectic solvents ((D)ESs) are designer solvents with unique properties.
  • (D)ESs offer advantages over conventional solvents in separation science.
  • Their application in chromatography and electromigration enhances separation performance and promotes green analytical chemistry.

Purpose of the Study:

  • To systematically review the applications of (D)ESs in chromatographic and electromigration techniques.
  • To examine the physicochemical properties of (D)ESs that influence separation efficiency.
  • To elucidate the mechanisms underlying (D)ES-mediated separations and discuss challenges.

Main Methods:

  • Literature review of (D)ES applications in separation science.
  • Critical examination of physicochemical properties driving separation.
  • Analysis of functional roles across diverse separation platforms.

Main Results:

  • (D)ESs have diverse functional roles in various separation techniques.
  • Specific physicochemical properties of (D)ESs are key to separation efficiency.
  • Integration of (D)ESs offers enhanced performance and greener analytical methods.

Conclusions:

  • (D)ESs represent a versatile tool for advancing separation science.
  • Understanding (D)ES properties and mechanisms is crucial for optimizing separations.
  • Further research is needed to address persistent challenges and debates in the field.