title: Identification of multiple ingredients for a Traditional Chinese Medicine preparation (bu-yang-huan-wu-tang) by liquid chromatography coupled with tandem mass spectrometry.
abstract: Bu-yang-huan-wu-tang (BYHWT) is a popular Traditional Chinese Medicine formula consisting of seven herbal medicines (Astragalus membranaceus, Angelica sinensis, Paeonia lactiflora, Ligusticum chuanxiong, Carthamus tinctorius, Amygdalus persica and Pheretima aspergillum), that has been used in China for centuries to overcome stroke-induced disability. To ensure the consistency of quality, a reliable analytical method is required, therefore, we developed a liquid chromatography with tandem mass spectrometry (LC-MS/MS) method for quantitative analysis of the major constituents in BYHWT. The herbal ingredients consisting of the cycloartane-type triterpene glycosides of astragaloside I, astragaloside II and astragaloside IV; isoflavones of formononetin, ononin calycosin, calycosin-7-O-β-d-glucoside; ligustilide and paeoniflorin were separated on a C18 column with gradient elution of methanol/10 mM ammonium acetate buffer-formic acid (100:0.1, v/v). This study was performed by a mass spectrometer using electrospray ionization (ESI) with positive ionization ions monitored in the multiple reaction-monitoring (MRM) mode. The linearity, accuracy, precision, limit of detection (LOD) and lower limit of quantification (LLOQ) were validated for this quantification method, and the sensitivity, reliability and reproducibility were all confirmed. The experiments provided a good method for analyzing BYHWT extracts. This study also quantitated the active components in various brands of commercially available products. The results indicated that the pharmaceutical industrial products of BYHWT exhibited considerable variation in their contents of the herbal compounds.
authors.affiliation: Institute of Traditional Medicine, National Yang-Ming University, Taipei 112, Taiwan. lychee0130@hotmail.com
authors.forename: Lee-Hsin
authors.initials: LH
authors.lastname: Shaw
authors.forename: Wei-Ming
authors.initials: WM
authors.lastname: Chen
authors.forename: Tung-Hu
authors.initials: TH
authors.lastname: Tsai
mesh_terms: D015107:4-Butyrolactone / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification; D001565:Benzoates / Q000737:chemistry / Q000302:isolation & purification; D001952:Bridged-Ring Compounds / Q000737:chemistry / Q000302:isolation & purification; D002851:Chromatography, High Pressure Liquid; D004077:Digoxin / Q000737:chemistry / Q000302:isolation & purification; D004365:Drugs, Chinese Herbal; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification; D006801:Humans; D007529:Isoflavones / Q000737:chemistry / Q000302:isolation & purification; D057230:Limit of Detection; D008516:Medicine, Chinese Traditional; D039821:Monoterpenes; D015203:Reproducibility of Results; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification; D021241:Spectrometry, Mass, Electrospray Ionization; D053719:Tandem Mass Spectrometry; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides
chemical_list: D015107:4-Butyrolactone; D001565:Benzoates; D001952:Bridged-Ring Compounds; D004077:Digoxin; D004365:Drugs, Chinese Herbal; D005960:Glucosides; D007529:Isoflavones; D039821:Monoterpenes; D012503:Saponins; D014315:Triterpenes; C580601:astragaloside II; C587029:bu-yang-huan-wu-tang; C526426:calycosin-7-O-beta-D-glucoside; C121707:7,3'-dihydroxy-4'-methoxyisoflavone; C015423:peoniflorin; D006027:Glycosides; C007768:formononetin; C052064:astragaloside A; C027820:ligustilide
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