Research / 2020 / Article / Fig 5

Research Article

Fine-Tuning Pyridinic Nitrogen in Nitrogen-Doped Porous Carbon Nanostructures for Boosted Peroxidase-Like Activity and Sensitive Biosensing

Figure 5

(a) Schematic illustration of the TAC assay using NP-CMNs. UV-vis spectra (b) and corresponding calibration curves (c) of the TAC assay with the AA concentrations from 0.05 to 5 mM. TAC of commercial beverages (d) and vitamin tablets (f) (in comparison with the specifications).