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Hollow fiber microextraction: a new hybrid microextraction technique for trace analysis
Alessandra H Ide1, José Manuel F Nogueira2
1Centro de Química e Bioquímica e Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, Campo Grande Ed. C8, 1749-016, Lisbon, Portugal.
Analytical and Bioanalytical Chemistry
|March 11, 2018
Summary
A new hybrid hollow fiber microextraction technique offers an eco-friendly and cost-effective method for analyzing polycyclic aromatic hydrocarbons (PAHs) in various samples. This user-friendly approach provides sensitive detection of PAHs at ultratrace levels.
Area of Science:
- Analytical Chemistry
- Environmental Science
Background:
- Miniaturized devices are crucial for trace analysis.
- Traditional methods for polycyclic aromatic hydrocarbons (PAHs) analysis can be time-consuming and resource-intensive.
Purpose of the Study:
- To develop a novel hybrid hollow fiber microextraction (HFμE) technique.
- To establish a user-friendly, cost-effective, and eco-friendly method for ultratrace analysis of PAHs.
Main Methods:
- Utilized polypropylene membranes embedded with organic solvents for enrichment.
- Employed floating sampling technology and a single liquid desorption step.
- Analyzed 18 PAHs using gas chromatography coupled with mass spectrometry (GC-MS).
Main Results:
- Achieved average recoveries between 14.5% and 90.4% for PAHs.
- Obtained low detection limits (2.50-6.00 ng L⁻¹).
- Demonstrated good linear dynamic ranges (20.00-2000.00 ng L⁻¹) and precision (RSD < 15%).
Conclusions:
- The proposed HFμE technique is highly effective for monitoring PAHs in diverse matrices like water, soil, tea, and fish liver.
- This innovative method is a competitive and user-friendly alternative for routine ultratrace analysis.
Keywords:
Floating sampling technologyGas chromatography-mass spectrometryHollow fiber membranesMicroextraction techniquesPolycyclic aromatic hydrocarbonsReal matricesMore Related Videos
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