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Objective:To study the influencing factors in the preparation of salicylic acid dropping pills , and determine the opti-mum preparation process .Methods: The environmental factors , heating temperature , matrix ratio and preparation steps of salicylic acid drop pills were observed .With pill weight difference , dissolution time and appearance quality as the indices , an orthogonal test was adopted to optimize the preparation process .Results:Salicylic acid and the matrix should be separately heated to prevent red ox-ide.The optimized preparation process of drop pills was as follows:the ratio of PEG 400 and PEG 6000 was 1∶5, the temperature of drug solution was 50℃, the dropping distance was 8 cm and the dropping rate was 70 drops per minute .Conclusion:The preparation process is simple and practicable .The pill weight difference , dissolution time and appearance quality all meet the quality require-ments.
RESUMO
OBJECTIVE:To provide reference for improving teaching quality for pharmaceutical engineering major of Pharma-cology Course. METHODS:According to the current status and deficiencies on Pharmacology Course in universities,combined with own teaching experience and understanding,the author explored,four aspects. RESULTS & CONCLUSIONS:Pharmaceutical engineering major lacks specialized text books,and is in short of class periods and absence of experimant classes. Establishing rea-sonable teaching evaluation feedback mechanism,innovating teaching mode,setting up virtual simulation laboratory and sharing network resource may stimulate the enthusiasm of the students’self-learning,cultivate the students' ability to apply knowledge to practice and contribute to the improvement of teaching quality.