Investigation of association of chemical profiles with the tracheobronchial relaxant activity of Chinese medicinal herb Beimu derived from various Fritillaria species
Keywords: FID; flame ionization detection; GC; gas chromatography; LC-MS; liquid chromatography mass spectrometry; LOQ; limit of quantification; PCA; principal component analysis; TCM; traditional Chinese medicine; Beimu; Fritillaria; Isosteroidal alkaloid; Gas chr