Table of Contents
ISRN Analytical Chemistry
Volume 2012, Article ID 609587, 6 pages
http://dx.doi.org/10.5402/2012/609587
Research Article

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

Basic Herbal Medicine Research Group, Herbal Medicine Research Division, Korea Institute of Oriental Medicine, 1672 Yuseongdae-ro, Yuseong-gu, Daejeon 305-811, Republic of Korea

Received 24 May 2012; Accepted 18 June 2012

Academic Editors: P. Campíns-Falcó and C. Desiderio

Copyright © 2012 Chang-Seob Seo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A simple, rapid, and accurate high-performance liquid chromatographic method was applied to the quantitative analysis of six components of a traditional herbal formulation, Insampaedok-san (ISPDS): liquiritin (1), ferulic acid (2), naringin (3), hesperidin (4), neohesperidin (5), and glycyrrhizin (6). The six components were separated within 35 min using a Gemini C18 column maintained at 40°C. The mobile phase was composed of 1.0% (v/v) aqueous acetic acid (A) and 1.0% (v/v) acetic acid in acetonitrile (B) by gradient elution. The flow rate was 1.0 mL/min and the detector was a photodiode array (PDA) set at 254, 280, and 320 nm. The calibration curves showed good linearity (𝑅2=1.0000) for different concentration ranges. The recovery of each component was in the range of 92.62%–105.96%, with a relative standard deviation (RSD) of less than 4.0%. The RSDs for intra- and interday precision were 0.04%–1.70% and 0.06%–2.56%, respectively. The concentration of each of the six components of ISPDS was in the range 0.72–9.88 mg g−1.