Self-assembly of alkyldithiols on a novel dendritic silver nanostructure electrodeposited on a stainless steel wire as a fiber coating for solid-phase microextraction

摘要: A facile and efficient electrodeposition approach for the controllable preparation of dendritic silver nanostructure was developed on an etched stainless steel (ESS) wire. Subsequently, self-assembled alkyldithiols (HS–Cx–SH, x = 2, 3, 6, 8) performed Ag coating via Ag–S bonding. The octanedithiol modified nanodendrites (AgNDs) coated ESS fiber (HS–C8–S–AgNDs/ESS) then assessed SPME polycyclic aromatic hydrocarbons (PAHs), ultraviolet (UV) filters, polychlorinated biphenyls (PCBs), chlorophenols (CPs), phthalate esters (PAEs) substituted anilines coupled to high-performance liquid chromatography with UV detection (HPLC-UV). This exhibits higher extraction capability good selectivity PAHs, PCBs triclosan compared CPs, PAEs anilines. In particular, microextraction conditions were investigated optimized performance filters. Under conditions, method showed linearity between 0.30 400 μg L−1 corresponding correlation coefficients in range 0.9973–0.9986. limits ranged from 0.05 0.12 L−1. relative standard deviation fiber-to-fiber reproducibility five fabricated fibers same batch less than 8.2%. expanded uncertainties below 6.9% (coverage factor k 2). practically applied preconcentration determination trace filters real environmental water samples.