Figure 3From: The binding characteristics of isoniazid with copper–zinc superoxide dismutase and its effect on enzymatic activityUV-Vis absorption spectra of SOD in the absence and presence of INH system (pH = 7.4, T = 303 K). c(SOD) = 4.0 × 10−6 mol · L−1; c(INH)/(10−5 mol · L−1) , 1–7: 0, 2, 4, 8, 12, 16, 20, respectively. Insert: (A0- A) −1 vs. [Q] −1.Back to article page