|《Journal of Chinese Mass Spectrometry Society》 2014-03 |
|Chemical Comparison Between Decoctions of Radix Paeoniae Rubra and Radix Paeoniae Alba by UPLC-QTOF MS[Reference: WebLink]|
|To investigate the chemical comparison between decoctions of Radix Paeoniae Rubra and Radix Paeoniae Alba,the samples from legal market were compared using ultraperformance liquid chromatography-quadrupole time-of-flight mass spectrometry(UPLCQTOF MS).
METHODS AND RESULTS:
Data were statistically analyzed by principal component analysis and orthogonal partial least-squares to latent structures discriminate analysis.The comparing with reference compounds,accurate m/zvalue analysis of TOF-MS data based on in-house software for automatic tentative identification and QTOF-MS/MS fragment analysis were applied to constituents identification.The results indicate that oxypaeoniflorin and albiflorin are the most important differential constituents in the decoctions of Radix Paeoniae Rubraand Radix Paeoniae Alba,respectively.
Moreover,the contents of 8-debenzoylpaeoniflorin,1'-O-benzoylsucrose,mudanpioside F,Mudanpioside C/benzoloxypaeoniflorin,mudanpioside E,(1S,2S,4R)-trans-2-hydroxy-1,8-cineole-B-D-glucopyranoside,saccharose and galloylpaeoniflorin/galloylalbiflorin may also be of significant difference for two kinds of decoctions.
|《Chinese Traditional and Herbal Drugs》 2013-11 |
|Studies on chemical constituents of Guizhi Fuling Capsule (Ⅳ)[Reference: WebLink]|
METHODS AND RESULTS:
Eight compounds were isolated from the petroleun ether extract and were identified as coumarin(1),7-hydroxycoumarin(2),cinnamic alcohol(3),ergosterol(4),ergosta-4,6,8(14),22-tetraen-3-one(5),β-amyrin acetate(6),campesterol(7),and α-amyrin acetate(8).Thirteen compounds were isolated from the ethyl acetate extract and were identified as apingenin(9),kaemferol(10),quercetin(11),kaempferol-3-O-glucopyranoside(12),catechin(13),epicatechin(14),syringic acid(15),hyperin(16),eicosanoids(17),syringaresinol(18),mudanpioside A(19),Mudanpioside C(20),and galloylpaeoniflorin(21).
Compounds 1—21 are isolated from GFC for the first time.