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. Author manuscript; available in PMC: 2021 Dec 15.
Published in final edited form as: Biosens Bioelectron. 2019 Jul 10;142:111495. doi: 10.1016/j.bios.2019.111495

Fig. 2.

Fig. 2.

(A) compares the TMB chromogenic reaction with different combinations of TMB, H2O2 and Fe-N-C SAN; (B) shows the fluorescence spectra of TA with the presence of H2O2 and Fe-N-C SAN or not; (C) exhibits the fluorescence spectra of DHE with the presence of Fe-N-C SAN or not.