Study on HPLC fingerprint of Prunella vulgaris / 中国中药杂志

<p><b>OBJECTIVE</b>To establish HPLC fingerprint of Prunella vulgarise for quality control of the herbal medicine.</p><p><b>METHOD</b>A sunfire C18 analytical column was used. The mobile phase A was 1% acetic acid, and mobile phase B was methanol. The elution was in gradient mode and detection wavelength was set at 290 nm. The flow rate was 1.0 mL x min(-1) and the column temperature at 30 degrees C. The analysis time was 60 min.</p><p><b>RESULT</b>The similarity of 10 batches of P. vulgaris was not lower than 0.810. The fingerprints of the herbal medicine were classified P. vulgaris on the results of cluster analysis.</p><p><b>CONCLUSION</b>This method is available for quality evaluation and control the quality of P. vulgaris.</p>

Investigate into of effective constituent transference of herba Ephedrae and cortex Magnoliae officinalis in preparation course of Shujin Kechuan capsule / 中国中药杂志

<p><b>OBJECTIVE</b>Investigate into transport rate and retention rate transference of principal effective constituent in Shujin Kechuang capsule, a new development Chinese patent medicine for theraphy asthma.</p><p><b>METHOD</b>HPLC was applied to analyze the content of ephedrine hydrochloride and honokiol and magnolol in crude drugs and 60% ethanol extracting solution and 25% concentrated solution,50% concentrated solution, 100% concentrated solution and finished product ( Shujin Kechuang capsule).</p><p><b>RESULT</b>The transport rate of ephedrine hydrochloride and honokiol and magnolol is 56. 32%, 14. 43%, 14. 56% in the finished product respectively.</p><p><b>CONCLUSION</b>should be concentrate and desiccation in the condition that decompress and low temperature.</p>