Rapid determination of puerarin in Xiaoke pill powder by near-infrared spectroscopy / 中国中药杂志

<p><b>OBJECTIVE</b>To determine the content of puerarin in Xiaoke pill powder rapidly by near-infrared spectroscopy.</p><p><b>METHOD</b>Near-infrared diffuse reflectance spectroscopy technology was used to collect NIR spectra of Xiaoke pills powder. With HPLC analysis values as reference, the fast determination method of puerarin was established with partial least squares (PLS).</p><p><b>RESULT</b>The R2, RMSECV and RPD of the calibration model for puerarin were 0.980 1, 0.131 and 7.09. The average relative deviation of the predication set was 3.2%.</p><p><b>CONCLUSION</b>The method is accurate, fast and simple, which could be generalized to the on-line quality control of Xiaoke pill powder production.</p>

Effect of Tiaowei Xiaozhi Pills on Gastric Juice Secretion and Gastrointestinal Function in Rats Model of Damp Stagnation Syndrome / 中药新药与临床药理

Objective To observe the effect of Tiaowei Xiaozhi Pills on gastric juice secretion and gastrointestinal function in rats model of damp stagnation syndrome. Methods The damp stagnation syndrome model was established in rats. The gastric juice,pepsin and gastrointestinal function were determined. Results Tiaowei Xiaozhi Pills in the dosages of 700 mg/kg and 350mg/kg can diminish the amount of gastric juice and pH level and increase pepsin level. Tiaowei Xiaozhi Pills in the dosages of 700 mg/kg,350 mg/kg,175 mg/kg can also improve gastrointestinal function in model rats. Conclusion Tiaowei Xiaozhi Pills have improvement on gastrointestinal function in rats model of damp stagnation syndrome.