远志-石菖蒲药对配伍前后远志化学成分定性定量分析

Qualitative and quantitative analysis of components of Radix Polygalae in herbal pair of Radix Polygalae and Rhizoma Acori Tatarinowii

研究药对远志-石菖蒲配伍对远志药材化学成分的影响。采用HPLC-Q-TOF-MS/MS法对远志-石菖蒲配伍前后远志化学成分进行定性,并用HPLC-UV法进行定量分析。采用C18色谱柱(250 mm×4.6 mm,5μm),以乙腈-0.1%甲酸水溶液为流动相梯度洗脱;质谱使用电喷雾离子源,在正离子模式下扫描;通过对照品对照、质谱数据和对比文献对远志化学成分的各色谱峰进行归属,并比较远志-石菖蒲配伍前后远志各化学成分的含量变化。从远志中鉴定出8个化学成分:3,4,5-三甲氧基肉桂酸、对甲氧基肉桂酸、细叶远志皂苷、西伯利亚远志糖A5、远志酮Ⅲ、细叶远志苷B、3,6'-二芥子酰基蔗糖和细叶远志苷A;经石菖蒲配伍后,远志的8个化学成分含量无明显变化。远志-石菖蒲配伍后的化学成分定性定量研究可为该药对的体内配伍作用探索提供方法依据。

The purpose of this research was to explore the differences of the components of Radix Polygalae in herbal pair of Radix Polygalae and Rhizoma Acori Tatarinowii. An HPLC-Q-TOF-MS/MS method and an HPLC-UV method were established for the identification and determination of the components of Radix Polygalae, respectively. HPLC separation was carried out on a C18 column（250 mm×4.6 mm, 5 μm）with linear gradient elution using a mobile phase consisting of acetonitrile and 0. 1% formic acid aqueous solution. Mass spectrometry with ESI source was performed in the positive ion mode to scan MS data including total ion chromatograms and ion peaks of Radix Polygalae. Eight components including 3, 4, 5-trimethoxycinnamic acid, p-methoxycinnamic acid, tenuifolin, sibiricose A5, polygalaxanthone III, tenuifoliside B, 3, 6′-disinapoly sucrose, and tenuifoliside A were identified according to the reference substance retention time, MS data and literatures. There was no significant variation found in the contents of eight chemical constituents of Radix Polygalae. The qualification and quantitation study of the components in herbal pair of Radix Polygalae and Rhizoma Acori Tatarinowii provide the methodological basis for compatibility mechanism exploration in vivo.