Simultaneous Determination of Six Major Constituents of the Herbal Formula Insampaedok-san Using HPLC-PDA

<table>HPLC chromatograms of a standard mixture (a) of six components and Insampaedok-san sample (b), with detection at (I) 254 nm, (II) 280 nm, and (III) 320 nm. The peaks are ascribed to liquiritin (<b>1</b>), ferulic acid (<b>2</b>), naringin (<b>3</b>), hesperidin (<b>4</b>), neohesperidin (<b>5</b>), and glycyrrhizin (<b>6</b>).</table>

International Scholarly Research Notices

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Figure 2

Figure 2: Simultaneous Determination of Six Major Constituents of the Herbal Formula Insampaedok-san Using HPLC-PDA 