Ultrasensitive detection of perfluorooctanoic acid using a surface-enhanced Raman scattering-microfluidic sensor based on the p-phenylenediamine self-assembly strategy.
Per- and polyfluoroalkyl substances (PFAS) are widely employed in diverse industrial applications owing to their exceptional stain resistance, thermal stability, mechanical durability, and intrinsic non-biodegradable nature. Among this class of compounds, perfluorooctanoic acid (PFOA) stands as a representative and ext...