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Related Concept Videos

Size-Exclusion Chromatography01:08

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In size-exclusion chromatography (SEC), also known as molecular-exclusion or gel-permeation chromatography, molecules are separated based on their sizes. This technique is important for separating large molecules such as polymers and biomolecules. The two classes of micron-sized stationary phases encountered in SEC are silica particles and cross-linked polymer resin beads. Both materials are porous, but their pore sizes vary significantly.
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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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Related Experiment Video

Updated: Nov 2, 2025

Fabrication of a Dipole-assisted Solid Phase Extraction Microchip for Trace Metal Analysis in Water Samples
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Nanoplatform-Integrated Miniaturized Solid-Phase Extraction Techniques: A Critical Review.

Sushmita Salve1, Yogita Bahiram1, Amol Jadhav1

  • 1National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Gandhinagar, Gujarat, India.

Critical Reviews in Analytical Chemistry
|June 7, 2021
PubMed
Summary

Solid-phase extraction (SPE) offers a versatile and efficient method for biological sample preparation. Advancements in nanosorbent technology further enhance SPE

Keywords:
Carbon-based nanosorbentsimmunoaffinity magnetic solid-phase extractionmagnetic nanosorbentsmolecularly imprinted polymersnanosorbents

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Area of Science:

  • Analytical Chemistry
  • Materials Science

Background:

  • Biological sample preparation is crucial for accurate analysis.
  • Liquid-liquid extraction has been a traditional method.
  • Solid-phase extraction (SPE) offers advantages in efficiency and simplicity.

Purpose of the Study:

  • To review advancements in solid-phase extraction (SPE).
  • To highlight the role of nanosorbent technology in SPE.
  • To discuss the impact of nanosorbents on sample preparation and analysis.

Main Methods:

  • Review of existing literature on SPE and nanosorbent technology.
  • Critical analysis of reported advancements and applications.
  • Focus on extraction efficiency, selectivity, and speed.

Main Results:

  • SPE demonstrates superior extraction efficiency, reproducibility, and solvent economy compared to liquid-liquid extraction.
  • Nanosorbent technology significantly enhances SPE by simplifying procedures, improving selectivity, and accelerating analysis.
  • Nanosorbents offer diversified applications in biological sample preparation.

Conclusions:

  • Nanosorbent technology represents a significant advancement in SPE.
  • These advancements lead to more efficient, selective, and rapid biological sample analysis.
  • The review underscores the potential of nanosorbents to revolutionize sample preparation techniques.