title: Simultaneous determination and assignment of 13 major flavonoids and glycyrrhizic acid in licorices by HPLC-DAD and Orbirap mass spectrometry analyses.
abstract: To determine 13 flavonoids and glycyrrhizic acid in licorice (Glycyrrhiza spp.), several samples from different areas were examined by HPLC-DAD analysis. The analysis was performed on a Zorbax Extend-C18 (250 mm × 4.6 mm, 5 μm) column connected with a Zorbax Extend guard column (20 mm × 4.6 mm, 5 μm). The mobile phase consisted of (A) acetonitrile and (B) 0.026% aqueous H3PO4 (VV) using a gradient elution of 20%-25% A at 0-20 min, 25%-33% A at 20-30 min, 33%-50% A at 30-55 min, 50%-60% A at 55-65 min, and 60% A between 65 min and 80 min, and peaks were detected at 280 nm. The fourteen compounds were assigned by HPLC-Orbitrap MS methods. The regression coefficient for the linear equations for the 14 compounds ranged between 0.9998 and 1. The limits of detection and quantification lay in the range of 0.032-2.461 and 0.154-8.202 μg·mL(1), respectively. The relative recovery rates for the 14 compounds were in the range of 93.90%-106.73% with RSDs being less than 5%. Coefficient variations for intra-day and inter-day precisions were in the range of 0.27%-2.38% and 0.31%-3.51%, respectively. In summary, the validated method was applied to the simultaneous determination of the 14 components in 29 different licorice samples and was proven to be suitable for quality evaluation of licorices and their active fractions.
authors.affiliation: School of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
authors.forename: Shan-Shan
authors.initials: SS
authors.lastname: Wei
authors.affiliation: National Engineering Laboratory for TCM Standardization Technology, Shanghai Research Center for TCM Modernization, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China. Electronic address: m_yang@simm.ac.cn.
authors.forename: Min
authors.initials: M
authors.lastname: Yang
authors.affiliation: National Engineering Laboratory for TCM Standardization Technology, Shanghai Research Center for TCM Modernization, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Chen
authors.affiliation: National Engineering Laboratory for TCM Standardization Technology, Shanghai Research Center for TCM Modernization, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
authors.forename: Qiu-Rong
authors.initials: QR
authors.lastname: Wang
authors.affiliation: School of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China. Electronic address: janney808@sina.com.
authors.forename: Ya-Jun
authors.initials: YJ
authors.lastname: Cui
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D005419:Flavonoids / Q000032:analysis*; D006035:Glycyrrhiza / Q000737:chemistry*; D019695:Glycyrrhizic Acid / Q000032:analysis*; D013058:Mass Spectrometry / Q000379:methods*; D015203:Reproducibility of Results
chemical_list: D005419:Flavonoids; D019695:Glycyrrhizic Acid
keywords: Flavonoids; Glycyrrhizic acid; HPLC-DAD; Licorice; Orbitrap mass spectrometry; Simultaneous determination