الملخص
<p><b>OBJECTIVE</b>To develvp a RP-HPLC method for the determination of flavonoids in fifteen kinds of flowers such as Iris lacteal pall, prunus persica and rosa chinensis.</p><p><b>METHOD</b>The contents of quercetin, kaempferol and isorhamntin in fifteen kinds of flowers were extracted with methanol. The analysis was performed on a Kromasil C18 column (4.6 mm x250 mm, 5 microm) with methanol-0.1% phosphoric acid (50:50) as mobile phase.</p><p><b>RESULT</b>The quercetin, kaempferol and isorhamntin were separated well, and the result shows that the content of quercetin in the Iris lactea Pall was the highest (1.536%), the contene of kaempferol in Persica persice was the highest (0.572%), and the content of isorhamntin in chrysamthemum morifolium was up to 0.290%.</p><p><b>CONCLUSION</b>The contents of flavonoids in these flowers were by determined RP-HPLC for the first time and the method can be used for quantitative determination of flavonoids in the flowers.</p>