色谱法
四极飞行时间
减法
化学
质谱法
根(腹足类)
体内
串联质谱法
数学
植物
生物
算术
生物技术
作者
Guangli Yan,Aihua Zhang,Hui Sun,Ying Han,Hui Shi,Ying Zhou,Xijun Wang
标识
DOI:10.1002/jssc.201300529
摘要
Shuanghuanglian formula (SF) is a combination of Flos lonicerae japonicae, Radix scutellariae, and Fructus forsythiae, commonly used to treat viral or bacterial infections. However, the constituents absorbed into the blood after oral administration of SF are difficult to determine and thus remain unclear. Here, we report the application of an accurate background subtraction and multiple data processing approach (Bs-Mpa) for the comprehensive detection of compounds of SF in vivo. A sensitive and reliable ultra-performance LC coupled with ESI quadrupole TOF MS (UPLC–ESI-Q-TOF-MS) approach coupled with Bs-Mpa, which is implemented in the Strip tool from UPLC to remove nonrelated ion signals from accurate mass LC–MS data, was established to characterize the chemical constituents and rat metabolites of SF. In the loading plot of the principal component analysis, 68 ions of interest were extracted from blood samples, among them, 39 absorbed prototype components of SF and 29 metabolites were identified in vivo. It is concluded that the integrative Bs-Mpa method can be successfully applied for the rapid discovery of multiple components from a traditional Chinese medicine. The above challenge was addressed by using the proposed Bs-Mpa method and it was particularly suitable for applying to the global characterization of the constituents or metabolites in rat blood after oral administration of other well-known formulae.
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