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Reversed-phase HPLC profile of the photodecomposition products of RP (0.5% in ethanol) after irradiation with 14 J/cm2 of (A) UVA or (B) UVB light. HPLC analysis was conducted on a Prodigy 5 μ ODS column (4.6 × 250 mm) eluted isocratically with methylene chloride in methanol (1/9; v/v) at 1 mL/min.
