Fig. 12From: Ag+ colorimetric sensor based on graphene oxide/nano-platinum compositeOptimization of H2O2 concentration during color development. Reaction condition: GO/PtNPs 0.047 μg/mL, H2O2 0.005, 0.01, 0.015, 0.02, 0.025, 0.03, 0.035, 0.04 M, TMB 0.02 Mm, pH = 5, t = 5 min, λ = 652 nmBack to article page