title: Linear Quantitative Profiling Method Fast Monitors Alkaloids of Sophora Flavescens That Was Verified by Tri-Marker Analyses.
abstract: The present study demonstrated the use of the Linear Quantitative Profiling Method (LQPM) to evaluate the quality of Alkaloids of Sophora flavescens (ASF) based on chromatographic fingerprints in an accurate, economical and fast way. Both linear qualitative and quantitative similarities were calculated in order to monitor the consistency of the samples. The results indicate that the linear qualitative similarity (LQLS) is not sufficiently discriminating due to the predominant presence of three alkaloid compounds (matrine, sophoridine and oxymatrine) in the test samples; however, the linear quantitative similarity (LQTS) was shown to be able to obviously identify the samples based on the difference in the quantitative content of all the chemical components. In addition, the fingerprint analysis was also supported by the quantitative analysis of three marker compounds. The LQTS was found to be highly correlated to the contents of the marker compounds, indicating that quantitative analysis of the marker compounds may be substituted with the LQPM based on the chromatographic fingerprints for the purpose of quantifying all chemicals of a complex sample system. Furthermore, once reference fingerprint (RFP) developed from a standard preparation in an immediate detection way and the composition similarities calculated out, LQPM could employ the classical mathematical model to effectively quantify the multiple components of ASF samples without any chemical standard.
authors.affiliation: School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China.|Department of Pharmaceutical Engineering, Hebei Chemical and Pharmaceutical College, Shijiazhuang, China.
authors.forename: Zhifei
authors.initials: Z
authors.lastname: Hou
authors.affiliation: School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China.
authors.forename: Guoxiang
authors.initials: G
authors.lastname: Sun
authors.affiliation: School of Pharmacy, Fairleigh Dickinson University, Florham Park, New Jersey, United States of America.
authors.forename: Yong
authors.initials: Y
authors.lastname: Guo
mesh_terms: D000470:Alkaloids / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification; D002845:Chromatography / Q000191:economics / Q000379:methods*; D016014:Linear Models; D015203:Reproducibility of Results; D029909:Sophora / Q000737:chemistry*; D013997:Time Factors
chemical_list: D000470:Alkaloids