title: [Research on X-ray diffraction fingerprints of crude and processed pyritum].
abstract: OBJECTIVE
  To establish the X-ray diffraction fingerprints of crude and processed pyritum.
  
  
  METHODS
  X-ray diffraction fingerprint was used to analyze the crude and processed pyritum of different habitat and batch.
  
  
  RESULTS
  The crude pyritum has 19 common peaks, while the processed ones has 11.
  
  
  CONCLUSIONS
  The X-ray diffraction can express characteristic of the crude and processed pyritum, which is specificity, accuracy and reliability and can be used for the quality control of crude and processed pyritum.
authors.affiliation: Nanjing University of Chinese Medicine, Jiangsu Key Laboratory of Chinese Medicine Processing, State Key Laboratory of Standardization for Chinese Medicine Processing of State Administration of Traditional Chinese Medicine of People's Republic of China, Nanjing 210029, China. leiyu1221@126.com
authors.forename: Yu
authors.initials: Y
authors.lastname: Lei
authors.forename: Weidong
authors.initials: W
authors.lastname: Li
authors.forename: Junsong
authors.initials: J
authors.lastname: Li
authors.forename: Baochang
authors.initials: B
authors.lastname: Cai
mesh_terms: D003878:Dermatoglyphics; D008419:Materia Medica / Q000494:pharmacology; D011786:Quality Control; D012106:Research; D014961:X-Ray Diffraction / Q000379:methods*; D014965:X-Rays
chemical_list: D008419:Materia Medica