title: [Rapid determination of puerarin in Xiaoke pill powder by near-infrared spectroscopy].
abstract: OBJECTIVE
  To determine the content of puerarin in Xiaoke pill powder rapidly by near-infrared spectroscopy.
  
  
  METHODS
  Near-infrared diffuse reflectance spectroscopy technology was used to collect NIR spectra of Xiaoke pills powder. With HPLC analysis values as reference, the fast determination method of puerarin was established with partial least squares (PLS).
  
  
  RESULTS
  The R2, RMSECV and RPD of the calibration model for puerarin were 0.980 1, 0.131 and 7.09. The average relative deviation of the predication set was 3.2%.
  
  
  CONCLUSIONS
  The method is accurate, fast and simple, which could be generalized to the on-line quality control of Xiaoke pill powder production.
authors.affiliation: Guangzhou Zhongyi Pharmaceutical Co., Ltd., Guangzhou 510530, China. subiru@21cn.com
authors.forename: Biru
authors.initials: B
authors.lastname: Su
authors.forename: Bin
authors.initials: B
authors.lastname: Ye
authors.forename: Chunxian
authors.initials: C
authors.lastname: Geng
authors.forename: Meng
authors.initials: M
authors.lastname: Shi
authors.forename: Changhai
authors.initials: C
authors.lastname: Wu
mesh_terms: D004365:Drugs, Chinese Herbal / Q000032:analysis*; D007529:Isoflavones / Q000032:analysis*; D011208:Powders; D019265:Spectroscopy, Near-Infrared / Q000379:methods*; D013997:Time Factors
chemical_list: D004365:Drugs, Chinese Herbal; D007529:Isoflavones; D011208:Powders; C033607:puerarin