Study on Microbial Limit Test Method for Tetracycline Ointment / 医学研究杂志

Objective To construct the microbial limit test method for tetracycline ointment. Methods The medium dilution method and extracting binding membrane filtration method were used in the recovery rate and control bacterial test of tetracycline ointment. Results The counting of mould and yeast could be tested by the medium dilution. Extracting binding membrane filtration method could help to bacterial counting and detection of control bacterial. Conclusion The method can detect the microbial contamination of tetracycline ointment effectively,which supplies the scientific data for the better evaluation of the validity and quality control to tetracycline ointment.