Thiazole-resorcinol azo dye platform: electrochemical sensing of dopamine, paracetamol, and tryptophan, fluorescence studies and luminescent visualization of latent fingerprints

Herein, we report the synthesis of a dual-function azo dye, i.e. thiazole-resorcinol azo (TRA) dye. The synthesized dye, whose structure was confirmed by spectroscopic analysis, was used to modify a carbon paste electrode (thiazole-resorcinol azo dye modified carbon paste electrode, TRA/MCPE) for the simultaneous electrochemical detection of Dopamine (DA), Paracetamol (PA), and Tryptophan (TR). Electrochemical studies revealed a diffusion-controlled oxidation mechanism and good analytical perfor