title: [Study on fast quality control in extracting process of Paeonia lactiflora using near infrared spectroscopy].
abstract: OBJECTIVE
  To set up a novel method for fast analysis of active components in water extracting process of Paeonia lactiflora with near infrared spectroscopy (NIRS).
  
  
  METHODS
  HPLC was used as the reference method to determine the content of Paeoniflorin and a multivariate calibration model based on PLS algorithm was developed to analyze the correlation between the spectra and the corresponding values determined by the reference method.
  
  
  RESULTS
  The correlation coefficient of the calibration model was 0.996 2, and the predicted coefficient was 0.989 5. The RMSEC and RMSEP were 0.109 g x L(-1) and 0.138 g x L(-1), respectively, and the RSEP was 5.6%.
  
  
  CONCLUSIONS
  The method mentioned above is proved to be convenient, rapid and nondestructive, accurate and reliable, and is applicable for fast analysis and monitoring of active components in extraction process of traditional Chinese medicine.
authors.affiliation: Institute of Modern Chinese Medicine, Zhejiang University, Hangzhou 310058, China.
authors.forename: Xueying
authors.initials: X
authors.lastname: Chen
authors.forename: Yerui
authors.initials: Y
authors.lastname: Li
authors.forename: Yong
authors.initials: Y
authors.lastname: Chen
authors.forename: Longhu
authors.initials: L
authors.lastname: Wang
authors.forename: Changhai
authors.initials: C
authors.lastname: Sun
authors.forename: Xuesong
authors.initials: X
authors.lastname: Liu
mesh_terms: D029596:Paeonia / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry*; D011786:Quality Control; D019265:Spectroscopy, Near-Infrared / Q000379:methods*
chemical_list: D010936:Plant Extracts