PMID- 21188642 OWN - NLM STAT- MEDLINE DCOM- 20110623 LR - 20211020 IS - 1861-0293 (Electronic) IS - 1340-3443 (Linking) VI - 65 IP - 2 DP - 2011 Apr TI - Simultaneous quantification of marker components in Ojeok-san by HPLC-DAD. PG - 375-80 LID - 10.1007/s11418-010-0494-6 [doi] AB - A systematic high-performance liquid chromatography-diode array detection (HPLC-DAD) method was developed for the rapid, accurate, and simultaneous quantification of eight marker compounds, paeoniflorin, 6-gingerol, decursin, glycyrrhizin, cinnamic acid, hesperidin, poncirin and magnolol, in Ojeok-san, a traditional Korean herbal medicine. These compounds were separated in less than 50 min using a Dionex C(18) column with a gradient elution system of water and methanol at a flow rate of 1 ml/min. All calibration curve of standard components showed excellent linearity (R(2) > 0.9922). Limits of detection (LOD) and limits of quantification (LOQ) ranged from 0.01 to 0.11 mug/ml and 0.03 to 0.34 mug/ml, respectively. The relative standard deviations (RSDs) of data of the intra- and inter-day experiments were less than 2.15 and 2.60%, respectively. The accuracy of recovery test ranged from 94.27 to 107.68% with RSD values 0.15-3.61%. The results of validation showed that the HPLC method was stable and very accurate for the quantification of eight marker components in Ojeok-san. FAU - Weon, Jin Bae AU - Weon JB AD - Department of Biomaterials Engineering, Division of Biotechnology and Bioengineering, Kangwon National University, Hyoja-2 Dong, Chuncheon 200-701, Republic of Korea. FAU - Park, Hwayong AU - Park H FAU - Yang, Hye Jin AU - Yang HJ FAU - Ma, Jin Yeul AU - Ma JY FAU - Ma, Choong Je AU - Ma CJ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20101228 PL - Japan TA - J Nat Med JT - Journal of natural medicines JID - 101518405 RN - 0 (Plant Extracts) SB - IM MH - Chromatography, High Pressure Liquid/*methods MH - *Medicine, Korean Traditional MH - Molecular Structure MH - Plant Extracts/*chemistry EDAT- 2010/12/29 06:00 MHDA- 2011/06/24 06:00 CRDT- 2010/12/29 06:00 PHST- 2010/06/03 00:00 [received] PHST- 2010/11/15 00:00 [accepted] PHST- 2010/12/29 06:00 [entrez] PHST- 2010/12/29 06:00 [pubmed] PHST- 2011/06/24 06:00 [medline] AID - 10.1007/s11418-010-0494-6 [doi] PST - ppublish SO - J Nat Med. 2011 Apr;65(2):375-80. doi: 10.1007/s11418-010-0494-6. Epub 2010 Dec 28.