Publications by authors named "Yan-jun Weng"
Objective: To compare the volatile constituents of Plumeriae Flos from different origins.
Methods: Water distillation method according to the Chinese Pharmacopeia was used to extract the volatile constituents of fresh Plumeriae Flos samples (red flower and white flower) and dried samples. GC-MS method combined with NIST MS Search 2.
Objective: To study the relevance between the drug effects and serum HPLC fingerprint of chemical constituents in blood from Ficus microcarpa leaves.
Methods: Fingerprints of the preparation and drug-containing serum of rats were established by HPLC. Based on the fingerprints, chemical constituents in blood were investigated.
Objective: To develop an HPLC method for the content determination of benzoic acid, 4-hydroxyphenylacetic acid and acetosyringonecas in Ficus microcarpa Leaves.
Methods: The determination was performed on Purospher® STAR C18 (250 mm x 4.6 mm,5 µm).