Korean Journal of Pharmacognosy (생약학회지)

The Korean Society of Pharmacognosy (한국생약학회)
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Simultaneous Analysis of Liquiritin and Glycyrrhizin in Sagunja-tang by HPLC-PDA

HPLC-PDA에 의한 사군자탕 중 Liquiritin과 Glycyrrhizin의 동시분석

  • Seo, Chang-Seob (Herbal Medicine EBM Research Center, Korea Institute of Oriental Medicine) ;
  • Kim, Jung-Hoon (Herbal Medicine EBM Research Center, Korea Institute of Oriental Medicine) ;
  • Shin, Hyeun-Kyoo (Herbal Medicine EBM Research Center, Korea Institute of Oriental Medicine)
  • 서창섭 (한국한의학연구원 한약EBM연구센터) ;
  • 김정훈 (한국한의학연구원 한약EBM연구센터) ;
  • 신현규 (한국한의학연구원 한약EBM연구센터)
  • Received : 2011.06.23
  • Accepted : 2011.08.11
  • Published : 2011.09.30
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Abstract

A high-performance liquid chromatography (HPLC) method was developed for quantitative analysis of liquiritin and glycyrrhizin in Sagunja-tang (SGT, Sijunzi-tang in Chinese), a traditional Korean medicine. HPLC analysis was performed using a Gemini C18 column operating at $40^{\circ}C$, and photodiode array (PDA) detection at 254 nm and 280 nm for quantification of the two components in SGT. The mobile phase using a gradient flow consisted of two solvent systems. Solvent A was 1.0% (v/v) aqueous acetic acid and solvent B was acetonitrile with 1.0% (v/v) acetic acid. Calibration curves were acquired with $r^2$ values > 0.9998, and the relative standard deviations (RSDs, %) for intra- and inter-day precision were not exceed 4.0%. The recovery of each component was in the range of 91.85 - 108.62%, with a RSD less than 4.0%. The contents of the two components in SGT were 7.94 - 13.83 mg/g.

Keywords

References

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