Fig. 12From: SERS Detection of Dopamine Using Label-Free Acridine Red as Molecular Probe in Reduced Graphene Oxide/Silver Nanotriangle Sol SubstrateWorking curve of the AR-rGO/AgNT-DA system. 8.62 μg/mL rGO/AgNT-1.75×10−6 mol/L AR-pH 6.0 PBS-0.04 mol/L NaCl-DABack to article page