Highly fluorinated hollow covalent organic framework for efficient solid-phase microextraction of perfluoroalkyl iodides in waters

Key Points

• Efficient solid-phase microextraction of perfluoroalkyl iodides was achieved, demonstrating strong adsorption properties.
• The hollow covalent organic framework showed enhanced extraction performance with a recovery rate exceeding 90% for target compounds.
• Analysis involved pre-concentration methods tailored for extracting micropollutants from water samples.
• These findings suggest significant improvements in methods for detecting harmful substances in environmental waters.