Controllable Growth of Nanoporous Metal Oxide Composites on Nickel-Titanium Alloy Fibers for Solid-Phase Microextraction of Polycyclic Aromatic Hydrocarbons

The porous nanostructured coatings were firstly in situ fabricated on the surface of NiTi fibers by multiple peroxide oxidation. The developed SPME-HPLC method was successfully used for the enrichment and analysis of PAHs in environmental water samples. Moreover, the fabricated fibers present good preparation reproducibility, high mechanical strength and stability.