1.HPLC Fingerprint Analysis of Disporum Cantoniense
Xiuhai GAN ; Zhiyuan LIANG ; Xin ZHOU ; Chao ZHAO ; Gang WEI
Herald of Medicine 2015;34(12):1623-1627
Objective To establish the HPLC fingerprint of Disporum cantoniense. Methods HPLC analysis was performed on Agilent Zorbax SB-C18 chromatographic column ( 250 mm × 4. 6 mm, 5 μm) with the mobile phase consisting of methanol-0.05% phosphoric acid in gradient mode.The flow rate was 1.0 mL·min-1, the detection wavelength was 256 nm and the column temperature was 30 ℃. Results The HPLC fingerprint of 15 batches of Disporum cantoniense was established. Thirteen common peaks in the fingerprint were demarcated, four of which were identified by reference substances. Chemical pattern recognition of fingerprint was performed by hierarchical cluster analysis and principal component analysis. Conclusion The method is simple, accurate and has a good repeatability, and can be used for quality control of Disporum cantoniense.
2.Optimization of excipients for Shufeng Dingchuan Granules
Lu LI ; Xiuhai WANG ; Yongxiang WANG ; Wenjie SUN ; Yun WU ; Gang DING ; Yuan BI ; Zhenzhong WANG
Chinese Traditional Patent Medicine 2017;39(4):731-736
3.Glycosides from Periploca forrestii.
Xin ZHOU ; Xiuhai GANG ; Xiaojian GONG ; Chao ZHAO ; Huaguo CHEN
China Journal of Chinese Materia Medica 2010;35(5):610-612
OBJECTIVETo study the chemical constituents from n-BuOH fraction of the stems of Periploca forrestii.
METHODThe compounds were separated and purified by various chromatographic techniques and recrystallisation. The physico-chemical properties and spectral data were applied to identify structure of these compounds.
RESULTSix glycosides were isolated and identified as emodin-8-O-beta-D-glucopyranoside (1), physcion-8-O-beta-D-glucopyranoside (2), kaempferol-3-O-beta-D-galactopyranoside (3), kaempferol-3-O-alpha-L-arabinopyranoside (4), quercetin-3-O-beta-D-glucopyranoside (5), quercetin-3-O-alpha-L-arabinopyranoside (6).
CONCLUSIONThese six compounds were obtained for the first time from this plant.
Glycosides ; chemistry ; isolation & purification ; Periploca ; chemistry