Fig. 2

HPLC chromatograms of (a) Blank nasal mucosa, (b) nasal mucosa spiked with 50 µg/mL of AZT (RT 6.61 min.), FP (RT 9.81 min.), and OXY (RT 2.45 min.).

HPLC chromatograms of (a) Blank nasal mucosa, (b) nasal mucosa spiked with 50 µg/mL of AZT (RT 6.61 min.), FP (RT 9.81 min.), and OXY (RT 2.45 min.).