Research Article

A High-Performance Liquid Chromatography:Chemiluminescence Method for Potential Determination of Vardenafil in Dietary Supplement

Figure 4

Original (O) and 2 . 0 × 1 0 5  mol/L vardenafil standard spiked (S) oral liquid, wine, and capsule chromatograms under the optimum conditions.
982186.fig.004a
(a)
982186.fig.004b
(b)
982186.fig.004c
(c)