title: Quantitative and chemical fingerprint analysis for the quality evaluation of Isatis indigotica based on ultra-performance liquid chromatography with photodiode array detector combined with chemometric methods.
abstract: A simple and reliable method of ultra-performance liquid chromatography with photodiode array detector (UPLC-PDA) was developed to control the quality of Radix Isatidis (dried root of Isatis indigotica) for chemical fingerprint analysis and quantitative analysis of eight bioactive constituents, including R,S-goitrin, progoitrin, epiprogoitrin, gluconapin, adenosine, uridine, guanosine, and hypoxanthine. In quantitative analysis, the eight components showed good regression (R > 0.9997) within test ranges, and the recovery method ranged from 99.5% to 103.0%. The UPLC fingerprints of the Radix Isatidis samples were compared by performing chemometric procedures, including similarity analysis, hierarchical clustering analysis, and principal component analysis. The chemometric procedures classified Radix Isatidis and its finished products such that all samples could be successfully grouped according to crude herbs, prepared slices, and adulterant Baphicacanthis cusiae Rhizoma et Radix. The combination of quantitative and chromatographic fingerprint analysis can be used for the quality assessment of Radix Isatidis and its finished products.
authors.affiliation: School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
authors.forename: Yan-Hong
authors.initials: YH
authors.lastname: Shi
authors.affiliation: School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
authors.forename: Zhi-Yong
authors.initials: ZY
authors.lastname: Xie
authors.affiliation: School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
authors.forename: Rui
authors.initials: R
authors.lastname: Wang
authors.affiliation: School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
authors.forename: Shan-Jun
authors.initials: SJ
authors.lastname: Huang
authors.affiliation: School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
authors.forename: Yi-Ming
authors.initials: YM
authors.lastname: Li
authors.affiliation: Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
authors.forename: Zheng-Tao
authors.initials: ZT
authors.lastname: Wang
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation / Q000379:methods; D005504:Food Analysis / Q000295:instrumentation* / Q000379:methods*; D031219:Isatis / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry*