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. 2020 Sep 18;8:671. doi: 10.3389/fchem.2020.00671

Figure 6.

Figure 6

(A) The vis absorption spectra of MIL-53(Fe)-TMB-H2O2 upon concentrations of SA (from 0 to 28 μmol L−1). Inset: the corresponding photograph of the colored products; (B) The linear relationship between absorbance intensity (ΔA) and SA level. Error bars represent the standard deviation of three trials.