Fig. 6

Van’t Hoff plot for the interaction of paeoniflorin with HSA with paeoniflorin concentrations (from 0.0 × 10−5 to 1.25 × 10−5 mol L−1 at 2.5 × 10−6 mol L−1 intervals) at three temperatures ([HSA] = 1.0 × 10−5 mol L−1)