title: Combinational numeral fingerprint spectra of Glycyrrhiza and analysis of common peak ratio invariableness in HPLC.
abstract: To overcome the instability of traditional Chinese medicine (TCM) fingerprint spectra (FPS) and to build up absolute identification standard of TCM, the construction method of combinational numeral fingerprint spectra (CNFPS) was set up. The analysis of invariableness based on CNFPS was carried out. It can be used as absolute quantitative standard to identify the difference of TCM samples. According to this method, the HPLC FPS of components extracted from Glycyrrhiza root samples by ethanol was analyzed. Stable results and accurate quality evaluation were obtained perfectly. The common peak ratio invariableness is an absolute standard in identifying TCM samples, which is better than the similarity method of the FPS.
authors.affiliation: School of Chemistry and Chemical Engineering, Shandong University, Jinan, People's Republic of China.
authors.forename: Huabin
authors.initials: H
authors.lastname: Zou
authors.forename: Guosheng
authors.initials: G
authors.lastname: Yang
authors.forename: Aiqin
authors.initials: A
authors.lastname: Du
authors.forename: Jiurong
authors.initials: J
authors.lastname: Yuan
authors.forename: Zhengran
authors.initials: Z
authors.lastname: Qin
authors.forename: Yingying
authors.initials: Y
authors.lastname: Xia
authors.forename: Hassan Y
authors.initials: HY
authors.lastname: Aboul-Enein
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D006035:Glycyrrhiza / Q000737:chemistry*; D012015:Reference Standards; D015203:Reproducibility of Results