Fig. 10From: Ag+ colorimetric sensor based on graphene oxide/nano-platinum compositeOptimization of reaction time during color development. Reaction condition: GO/PtNPs 0.047 μg/mL, H2O2 0.02 M, TMB 0.02 Mm, pH = 5, t = 1, 3, 5, 10, 15, 20, 25, 30 min, λ = 652 nmBack to article page