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Related Experiment Video

Updated: Jun 28, 2026

Continuous Liquid-Liquid Extraction of Medium-Chain Fatty Acids from Fermentation Broth Using Hollow-Fiber Membranes

Continuous Liquid-Liquid Extraction of Medium-Chain Fatty Acids from Fermentation Broth Using Hollow-Fiber Membranes

Published on: August 9, 2024

Chemical reactions in liquid-phase microextraction.

Li Xu¹, Chanbasha Basheer, Hian Kee Lee

¹Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.

Journal of Chromatography. A

|October 28, 2008

Summary

Liquid-phase microextraction (LPME) is a popular, solvent-free sample preparation method. This review explores chemical reactions enhancing LPME for broader applications and improved detection sensitivity.

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Area of Science:

Analytical Chemistry
Separation Science

Background:

Liquid-phase microextraction (LPME) is a widely adopted microscale sample pretreatment technique.
It offers advantages like extraction, enrichment, cost-effectiveness, ease of use, and minimal solvent consumption.
Hollow fiber-protected LPME further enhances sample cleanup and analyte enrichment due to a high sample-to-extracting solvent volume ratio.

Purpose of the Study:

This review focuses on chemical reactions integrated with LPME applications.
It contrasts these with conventional LPME methods where analytes are extracted without modification.
The aim is to highlight how chemical reactions expand LPME's scope, improve analyte compatibility, and boost detection sensitivity.

Main Methods:

The review surveys various chemical reaction strategies employed during LPME.
These include ion-pair extraction, complexation, and chemical derivatization (pre-extraction, in situ, post-extraction).
Other methods discussed are phase-transfer catalysis and special affinity reactions.

Main Results:

Chemical reactions significantly enhance analyte extractability, broadening LPME's applicability.
These reactions facilitate analyte compatibility with analytical systems.
Integration of chemical reactions leads to improved detection sensitivity in LPME analyses.

Conclusions:

Chemical reaction strategies are pivotal in advancing LPME techniques.
These integrated approaches overcome limitations of conventional LPME.
The development of reactive LPME expands its utility across environmental, pharmaceutical, biological, and forensic analyses.