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[Fabrication and application of polyaniline/titanium dioxide nanotube solid phase microextraction fiber]
Mingguang Ma1, Yunxia Wei1, Haixia Liu1
1College of Chemistry and Chemical Engineering, Lanzhou City University, Lanzhou 730070, China.
Se Pu = Chinese Journal of Chromatography
|July 2, 2021
Summary
A new polyaniline-coated titania nanotube fiber was developed for detecting UV filters in water. This method offers a simple, rapid, and accurate way to analyze environmental water samples.
Area of Science:
- Analytical Chemistry
- Materials Science
Context:
- Environmental monitoring requires sensitive detection of contaminants.
- Ultraviolet (UV) filters are common pollutants in water bodies.
- Developing efficient extraction techniques is crucial for accurate analysis.
Purpose:
- To fabricate a novel solid-phase microextraction fiber using polyaniline-coated titania composite nanotubes (PANI@TiO2NTs/Ti) on a titanium wire.
- To optimize the electropolymerization conditions for creating the composite fiber.
- To develop and validate a method for extracting and determining UV filters in environmental water samples using high-performance liquid chromatography (HPLC).
Summary:
- A PANI@TiO2NTs/Ti composite fiber was successfully fabricated via in situ oxidation.
- Optimal conditions for fiber fabrication (0.5 mol/L aniline-1 mol/L H2SO4, 10 V, 60 min) and extraction (40 min, 4 min desorption, 40°C, 600 rpm) were determined.
- The method demonstrated good recoveries (78.2%–118%) and precision (RSD 4.4%–8.9%) for UV filter determination.
Impact:
- Provides a simple, rapid, and accurate analytical method for sensitive UV filter determination.
- The developed PANI@TiO2NTs/Ti fiber offers a promising tool for environmental water quality assessment.
- Enhances the capability for monitoring emerging contaminants in aquatic ecosystems.
