Figure 5

UV absorption spectra of standard binary mixture (a), and eye drop assay solution (b), both containing 2.0 µg/mL OLO and 8.0 µg/mL KET.

UV absorption spectra of standard binary mixture (a), and eye drop assay solution (b), both containing 2.0 µg/mL OLO and 8.0 µg/mL KET.