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Related Concept Videos

Extraction: Advanced Methods00:56

Extraction: Advanced Methods

Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is formed in...
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Exosomes are stable, lipid bilayer-enclosed vesicles capable of crossing biological barriers. They can carry a wide range of molecules required for intercellular communication. Once exosomes are released from the cell where they originated, they enter a recipient cell through various pathways such as fusion, receptor-mediated endocytosis, macropinocytosis, and phagocytosis.
Stahl et al. discovered exosomes in 1983, but the exosomes were initially considered waste products released from the...
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DNA sequencing is a fundamental technique that is routinely used in the biological sciences. This method can be applied to a range of questions at different scales - from the sequencing of a cloned DNA fragment or the study of a mutation in a gene up to whole-genome sequencing. However, despite the widespread use of sequencing today, it was not until 1977 that Fredrick Sanger and his collaborators developed the chain-termination method to decode DNA sequences. It relies on the separation of a...
High-Performance Liquid Chromatography: Elution Process01:05

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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...
Extraction: Partition and Distribution Coefficients01:14

Extraction: Partition and Distribution Coefficients

The distribution law or Nernst's distribution law is the law that governs the distribution of a solute between two immiscible solvents. This law, also known as the partition law, states that if a solute is added to the mixture of two immiscible solvents at a constant temperature, the solute is distributed between the two solvents in such a way that the ratio of solute concentrations in the solvents remains constant at equilibrium.
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Related Experiment Video

Updated: Jun 18, 2026

Analysis of SEC-SAXS data via EFA deconvolution and Scatter
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Soxhlet extraction: Past and present panacea.

M D Luque de Castro1, F Priego-Capote

  • 1Department of Analytical Chemistry, Annex C-3 Building, Campus of Rabanales, E-14071 Córdoba, Spain. qa1lucam@uco.es

Journal of Chromatography. A
|December 1, 2009
PubMed
Summary
This summary is machine-generated.

Soxhlet extraction, a century-old technique, has been significantly improved with modern technologies like high pressure, ultrasound, and microwaves. These advancements minimize drawbacks and enhance performance, making Soxhlet extraction a versatile solution.

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Area of Science:

  • Analytical Chemistry
  • Separation Science

Background:

  • Soxhlet extraction is a long-standing technique for solid-liquid extraction.
  • The traditional method has inherent limitations such as long extraction times and high solvent consumption.

Purpose of the Study:

  • To provide a critical overview of the Soxhlet extraction technique.
  • To discuss advancements and improvements made to the conventional Soxhlet extractor.
  • To highlight the impact of new technologies on its performance and applications.

Main Methods:

  • Review of literature on Soxhlet extraction and its modifications.
  • Analysis of performance enhancements through the integration of high pressure, ultrasound, and microwave technologies.
  • Discussion of automation and commercialization of improved Soxhlet systems.

Main Results:

  • Integration of high pressure, ultrasound, or microwaves significantly reduces extraction time and solvent usage.
  • Automation has led to the development of various commercialized Soxhlet extraction systems.
  • Modernized Soxhlet extractors overcome many limitations of the conventional technique.

Conclusions:

  • The evolution of Soxhlet extraction through technological integration has greatly enhanced its efficiency and versatility.
  • Modernized Soxhlet extraction can be considered a near-universal solution for many extraction challenges.
  • Continued innovation ensures the relevance and broad applicability of Soxhlet extraction in various scientific fields.