RESUMO
Objective To establish fingerprint of volatile components in golden throat lozenges by GC-MS. Methods Volatile components from 10 batches of golden throat lozenges were extracted by steam distillation method and analyzed by GC-MS with n-tetradecane as internal standard. Fingerprint peak detection and similarity evaluation were applied to the total ion chromatogram(TIC)of GC-MS by "Similarity Evaluation System for Chromatographic Fingerprint of Traditional Chinese Medicine (Version 2004)" ,fingerprint peak was identified by mass spectrometry. Results A GC-MS fingerprint was established based on 10 common peaks as characteristic fingerprint information.The similarity of fingerprint peaks from the 10 batches of samples were more than 0.998.Ten fingerprint peaks were determined by mass spectrometry, all of which were composed of monoterpenes and monoterpenes containing oxygen, the highest content of which was L-menthol containing oxygen monoterpenes, accounting for 83.17% of the total. Conclusion The fingerprint established by gas chromatography-mass spectrometry can completely reflect the volatile components of golden throat lozenges tablets, with strong characteristics and specificity, and can be used as an effective method for the quality control of volatile components inf golden throat lozenges.
RESUMO
OBJECTIVE:To investigate the internal quality of 31 batches of Compound Glycyrrhiza oral solutions from different manufacturers.METHODS:The contents of Morphine and Guaifenesin in Compound Glycyrrhiza oral solutions were determined by HPLC,and the pH value of the solution was detected as well.RESULTS:Of the total 31 batches of samples,13 was unqualified in Morphine content,1 was unqualified in Guaifenesin content,and 1 was unqualified in pH value.CONCLUSION:The manufacturers should strictly obey the standards recorded in China Pharmacopoeia in respect of quality control to ensure the safety and efficacy of clinical medication.