title: [Study on applying chromatographic fingerprints to establishing quality criterion of processed tuber of Pinellia pedatisecta].
abstract: OBJECTIVE
  To explore the utility of principal component analysis (PCA) in conjunction with the window preprocessing scheme on chromatographic data for quality control.
  
  
  METHODS
  Chromatographic fingerprints of processed tuber of Pinellia pedatisecta were determined by HPLC, and the Window Preprocessing and PCA were used for data processing.
  
  
  RESULTS
  The quantitative differences among different growing areas and different process batches were found with this method.
  
  
  CONCLUSIONS
  The method can be used in quality control for monitoring between-batch products of traditional Chinese pharmaceutical process.
authors.affiliation: Institute of Chinese Materia Medica, China Academy of Traditional Chinese Medicine, Being 100700, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: He
authors.forename: Qi-wei
authors.initials: QW
authors.lastname: Zhang
authors.forename: Yong-xin
authors.initials: YX
authors.lastname: Zhang
authors.forename: Jie
authors.initials: J
authors.lastname: Sun
authors.forename: Zhu-ju
authors.initials: ZJ
authors.lastname: Wang
mesh_terms: D002681:China; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D017753:Ecosystem; D030021:Pinellia / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D025341:Principal Component Analysis / Q000379:methods; D011786:Quality Control