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自曹勇等在中华外科杂志(1963年6:481)发表“燃香消毒试验初步报告”一文后,为探索燃香消毒病房空气与用具的最低有效剂量,作者等在夏季用四元香在实验室和传染病房进行了多次消毒效果观察。实验所用四元香是以元粉、白粉、柏粉及云香按47、13、35、5的比例配合制成;制作时以元粉溶液为胶剂,以竹棒反复在上述粉末中翻滚粘附而成香柱。作实验用的四元香每根长20厘米,直径0.6厘米,重3～4克,能持续燃烧40～60分钟。实验用的菌种有枯草杆菌、乙型溶血性链球菌、绿脓杆菌、大肠
Since Cao Yong et al. Published the first edition of “The First Report of the Flaming Sterilization Test” in the Chinese Journal of Surgery (6: 481, 1963), in order to explore the minimum effective dose of air and appliances for the disinfection of ward, Room and Infectious Diseases conducted several disinfection effects observed. Qu Yuan used in the experiment is yuan powder, white powder, cedar powder and cloud incense by the proportion of 47,13,35,5 made with the production of element powder solution as a glue to the bamboo stick repeatedly rolling in the above powder Sticky incense sticks. For experimental use of the four fragrance each 20 cm long, 0.6 cm diameter, weighing 3 to 4 grams, can continue to burn 40 to 60 minutes. Experimental strains are Bacillus subtilis, hemolytic streptococcus B, Pseudomonas aeruginosa, large intestine