title: [FTIR fingerprints-chemical pattern recognition research of three kinds of Chimonanthus and fried samples].
abstract: OBJECTIVE
  To classify the leaves of Chimonanthus nitens, Chimonanthus Salicifolius, Chimonanthus zhejiang and their fried samples, Discriminating equation was established to distinguish categories of raw materials.
  
  
  METHODS
  The spectra of three kinds of Chimonanthus and fried samples were determined by FTIR. Principal component analysis, clustering analysis and discriminative analysis were applied to classify three kinds of Chimonanthus leaves and fried samples from different areas according to the relative absorbance of common peaks between 400 to 4000 cm(-1).
  
  
  RESULTS
  26 samples were divided into four classes, the discriminating accuracy was 96%.
  
  
  CONCLUSIONS
  The method is rapid, simple and could be applied to evaluate the quality of Chimonanthus leaves without damaging to sample, and it is easy to identify the adulteration.
authors.affiliation: Medical College of Nanchang University, Nanchang 330006, China. tongwei19860813@126.com
authors.forename: Wei
authors.initials: W
authors.lastname: Tong
authors.forename: Hao-hua
authors.initials: HH
authors.lastname: Luo
authors.forename: Xi
authors.initials: X
authors.lastname: Mai
authors.forename: Jing-jing
authors.initials: JJ
authors.lastname: Wei
authors.forename: Li
authors.initials: L
authors.lastname: Lin
mesh_terms: D031237:Calycanthaceae / Q000737:chemistry* / Q000145:classification; D016000:Cluster Analysis; D004365:Drugs, Chinese Herbal / Q000032:analysis / Q000737:chemistry*; D010363:Pattern Recognition, Automated; D018515:Plant Leaves / Q000737:chemistry*; D025341:Principal Component Analysis; D011786:Quality Control; D015203:Reproducibility of Results; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods*
chemical_list: D004365:Drugs, Chinese Herbal