Fig. 7
Synchronous fluorescence spectra of the interaction between OP and BSA at Δλ = 15 nm (A) and Δλ = 60 nm (B). (CBSA = 1.0 × 10− 6 mol∙L− 1 decreases from a to j, the OP concentration increases from 0 to 9.0 × 10− 5 mol∙L− 1, with a step size of 1.0 × 10− 5 mol∙L− 1)