Portable laser-induced graphene sensor for trace picric acid detection in water.
A portable electrochemical sensor based on laser-induced graphene (LIG) electrodes modified with graphene/PEDOT:PSS [Poly(3,4-ethylenedioxythiophene) polystyrene sulfonate] hybrid ink is developed for the trace-level detection of picric acid in water. The structural and compositional characterization of the LIG is perf...