一元制剂二氧化氯消毒液部分性能的研究

为了解一元制剂二氧化氯消毒液的消毒相关性能,采用悬液定量和载体定量杀菌试验以及理化分析方法进行了试验观察。结果,以含二氧化氯48.9 mg/L该消毒液二氧化氯对悬液中金黄色葡萄球菌、大肠杆菌、铜绿假单胞菌作用2.5 m in,杀灭对数值均>5.00,对白色念珠菌的杀灭对数值>4.00。含二氧化氯391 mg/L该液对悬液中枯草杆菌黑色变种芽孢作用5 m in,杀灭对数值>5.00;489 mg/L二氧化氯对载体上枯草杆菌黑色变种芽孢作用15m in,杀灭对数值>3.00。该消毒液原液于54℃存放14 d,二氧化氯下降率为5.7%;使用浓度的消毒液对金属有腐蚀。结论,该消毒液杀菌效果较好,储存稳定,存在腐蚀性。

STUDY ON SOME PROPERTIES OF MONOPHYLETIC PREPARATION OF CHLORINE DIOXIDE DISINFECTION SOLUTION

In order to know the disinfection-related properties of monophyletic preparation of chlorine dioxide disinfection solution,suspension quantitative and carrier quantitative germicidal tests and physicochemical analysis method were used to carry out experimental observation.Results: The killing logarithm of Staphylococcus aureus,Escherichia coli and Pseudomonas aeruginosa in suspension exposed to the disinfection solution containing chlorine dioxide 48.9 mg/L for 2.5 min was >5.00,that of Candida albicans exposed to the same conditions was >4.00.The killing logarithm of spores of Bacilllus subtilis var.niger in suspension exposed to the disinfection solution containing chlorine dioxide 391 mg/L for 5 min was >5.00 and that of spores of Bacillus subtilis var.niger on carrier exposed to the solution containing chlorine dioxide 489 mg/L for 15 min was >3.00.After the stock solution of the disinfection solution was stored at 54℃ for 14 days,its chlorine dioxide content decreased by 5.7%.The disinfection solution at applied concentration was corrosive to metals.Conclusion: The disinfection solution has good germicidal efficacy and is stable during storage,but it is corrosive.