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Updated: May 12, 2026
05:58
Deposition of Porous Sorbents on Fabric Supports
Published on: June 12, 2018
Application of sol-gel based octyl-functionalized mesoporous materials coated fiber for solid-phase microextraction
Xuemei Wang1, Honghong Rao, Xiaoquan Lu
1College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China. wxm98@163.com
Talanta
|April 20, 2013
Summary
A novel solid-phase microextraction (SPME) fiber utilizing octyl-functionalized SBA-15 demonstrated superior performance for polycyclic aromatic hydrocarbons (PAHs) analysis. This durable, home-made SPME fiber offers enhanced extraction efficiency and reliability for environmental sample analysis.
Area of Science:
- Analytical Chemistry
- Materials Science
- Environmental Science
Background:
- Polycyclic Aromatic Hydrocarbons (PAHs) are persistent organic pollutants requiring sensitive detection methods.
- Solid-Phase Microextraction (SPME) is a widely used technique for sample preparation in environmental analysis.
- Development of novel, stable, and efficient SPME materials is crucial for improving analytical performance.
Purpose of the Study:
- To develop a new SPME fiber using octyl-functionalized SBA-15 as a stationary phase.
- To evaluate the performance of the novel SPME fiber for the extraction of eight PAHs.
- To compare the efficiency of the home-made SPME fiber with commercial SPME fibers.
Main Methods:
- Octyl-functionalized SBA-15 was synthesized and used as a precursor for SPME fiber fabrication via the sol-gel technique.
- The SPME fiber was characterized for its structural properties, chemical stability, and lifespan.
- The extraction efficiency, precision, linearity, and repeatability of the SPME fiber were evaluated for eight PAHs in water and soil samples.
Main Results:
- The octyl-SBA-15 SPME fiber exhibited a honeycomb-like porous structure, high chemical stability, and a long lifespan (>200 cycles).
- The home-made SPME fiber demonstrated higher extraction efficiency for PAHs compared to commercial polydimethylsiloxane (PDMS) fibers.
- The method achieved good precision (<4.8%), low detection limits (0.024-0.050 μg/L), wide linearity (0.1-200 μg/L), and satisfactory recoveries (85.7-107.2% in water, 75.6-91.2% in soil).
Conclusions:
- The developed octyl-SBA-15 SPME fiber is a promising material for the efficient and reliable extraction of PAHs.
- This novel SPME approach offers advantages in terms of extraction efficiency, stability, and reusability for environmental monitoring.
- The method provides a sensitive and precise tool for the simultaneous analysis of multiple PAHs in complex matrices like water and soil.
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