title: [Analysis of saponin in Chinese ginsengs by NIR spectroscopy].
abstract: In the present paper the saponin in Chinese ginseng was analysed quantitatively by using near infrared spectroscopy. The spectral characteristics of the primary ingredients in Chinese ginseng were obtained by applying second derivative, MSC (Multiple Scatter Correction), and correlation chart to the original absorbance spectra of ginseng. Meantime, in combination with the PLS algorithm the calibration process was performed for the quantitative analysis of saponin in Chinese ginseng. The result obtained shows a fine precision of the method, with RMSEC of 0.154% and correlation coefficient of 0.9828.
authors.affiliation: The Institute of Optoelectronics of Da Lian Nationalities University, Dalian 116600, China. yongjun_lu@sina.com
authors.forename: Yong-jun
authors.initials: YJ
authors.lastname: Lu
authors.forename: Yan-ling
authors.initials: YL
authors.lastname: Qu
authors.forename: Zhi-qing
authors.initials: ZQ
authors.lastname: Feng
authors.forename: Zhi-qiang
authors.initials: ZQ
authors.lastname: Cao
authors.forename: Min
authors.initials: M
authors.lastname: Song
mesh_terms: D000465:Algorithms; D002138:Calibration; D005894:Panax / Q000737:chemistry*; D012503:Saponins / Q000032:analysis*; D013053:Spectrophotometry; D019265:Spectroscopy, Near-Infrared / Q000379:methods*
chemical_list: D012503:Saponins