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Updated: Feb 6, 2026
15:41
A Microfluidic Chip for the Versatile Chemical Analysis of Single Cells
Published on: October 15, 2013
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A New Microchip Design. A Versatile Combination of Electromembrane Extraction and Liquid-Phase Microextraction in a
María Ramos Payán1, Elia Santigosa2, Rut Fernández Torres1
1Department of Analytical Chemistry, Faculty of Chemistry , University of Seville , c/Prof. García González s/n , 41012 Seville , Spain.
Analytical Chemistry
|August 10, 2018
Summary
A novel microfluidic device integrates electromembrane extraction (EME) and liquid-phase microextraction (LPME) for rapid, simultaneous analyte extraction. This miniaturized approach significantly reduces analysis time and sample volume, achieving high extraction efficiencies.
Area of Science:
- Analytical Chemistry
- Separation Science
- Microfluidics
Background:
- Traditional extraction methods are often time-consuming and require large sample volumes.
- Miniaturization of analytical techniques is crucial for developing faster and more efficient sample preparation methods.
Purpose of the Study:
- To develop and demonstrate a novel microfluidic device capable of combining different extraction principles.
- To achieve simultaneous extraction of diverse analytes using a miniaturized, integrated approach.
Main Methods:
- Fabrication of a three-layer poly(methyl methacrylate) (PMMA) microchip with four channels.
- Integration of electromembrane extraction (EME) and liquid-phase microextraction (LPME) in various configurations.
- Optimization of effective variables for simultaneous μ-EME/LPME.
Main Results:
- The microchip successfully integrated EME and LPME for simultaneous extraction.
- Extraction efficiencies exceeded 77% within an 8-minute timeframe.
- Analyte recoveries from urine samples were over 90% with sample volumes below 40 μL.
Conclusions:
- The developed microfluidic device offers a versatile and efficient platform for simultaneous analyte extraction.
- This integrated approach significantly reduces analysis time and sample consumption.
- The technology demonstrates high performance and applicability in real-world sample analysis.
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