title: [Study on preparation process and quality control of jiangtangyin teabag].
abstract: OBJECTIVE
  To study preparation technology and establish the quality standard of Jiangtangyin teabag.
  
  
  METHODS
  An orthogonal test was adopted in this study. The transter rate of puerarin and the dried extraction rate were used as indices for optimizing the extraction condition. Quality standards of Jiangtangyin teabag were established by TLC and HPLC method.
  
  
  RESULTS
  The best extraction technology was as follows: The drugs were extracted for 3 times, the ratio of water to solid was 10, 8 and 8, respectirely, the extracting time was 1.5 h, 1 h and 1 h respectively. The speckles of TLC method were distinct, accurate and sensitive. The calibration curve of puerarin was linear in the range of 0.168 - 0.84 microg, r2 = 0.9997.
  
  
  CONCLUSIONS
  The preparation process is reasonable and feasible. The methods of quality control are scientific and can be used to control the quality of the Teabag.
authors.forename: Yu-Wen
authors.initials: YW
authors.lastname: Sun
authors.forename: Jin
authors.initials: J
authors.lastname: Wen
authors.forename: Fei
authors.initials: F
authors.lastname: Wang
authors.forename: Qi-Hua
authors.initials: QH
authors.lastname: Liu
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D029768:Cornus / Q000737:chemistry; D004338:Drug Combinations; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification* / Q000592:standards; D006358:Hot Temperature; D007004:Hypoglycemic Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000592:standards; D007529:Isoflavones / Q000032:analysis*; D029908:Pueraria / Q000737:chemistry; D011786:Quality Control; D015203:Reproducibility of Results; D012995:Solubility; D012997:Solvents / Q000737:chemistry; D013678:Technology, Pharmaceutical / Q000379:methods*; D013997:Time Factors
chemical_list: D004338:Drug Combinations; D004365:Drugs, Chinese Herbal; D007004:Hypoglycemic Agents; D007529:Isoflavones; D012997:Solvents; C033607:puerarin