摘要
目的研究一种以二癸基二甲基氯化铵为主要成分的单方双长链季铵盐消毒剂的消毒性能。方法用理化测定方法、消毒性能相关检验方法,对该消毒剂性能进行了试验。结果该单方二癸基二甲基氯化铵消毒剂使用浓度为460mg/L,对金黄色葡萄球菌、大肠杆菌、铜绿假单胞菌作用0.5min,杀灭对数值>5.00;对白色念珠菌作用1.0min,杀灭对数值>4.00。该消毒剂对物体表面作用5min,对自然菌平均杀灭对数值均大于1.0,对不锈钢片和铜片基本无腐蚀,对铝片和碳钢片轻度腐蚀。结论该单方二癸基二甲基氯化铵消毒剂储存性能稳定,腐蚀性低,对细菌繁殖体和酵母菌杀灭效果好。
Objective To Study the disinfection properties of a long-double-chain quaternary ammonium salt composed with didecyl dimethyl ammonium chloride. Methods Physicochemical examination, disinfectant properties related examination were used to carry out in laboratory to study the properties of the disinfectant. Results The killing logarithms of Escherichia coli , Staphylococcus aureus and Pseudomonas aeruginosa in suspension exposed to the water solution containing the disinfectant 460 mg/L for 0.5 min attained higher than 5.0.The killing logarithm of Candida albicans in suspension exposed to the water solution containing the disinfectant 460 mg/L for 1 rain attained higher than 4.0. The average killing logarithms of natural bacteria on surface was 〉1.0 by the disinfection solution containing 460 mg/L for 5 minutes. Immersion in the disinfection solution containing 460 mg/L for 72 h caused essentially no corrosion of stainless steel and copper coupon, and light corrosion of aluminum coupon and carbon steel. Conclusion The disinfectant was stable, low corrosion and has good efficacy in killing vegetative forms of bacteria and yeast.
出处
《中国卫生标准管理》
2012年第4期32-35,共4页
China Health Standard Management
关键词
二癸基二甲基氯化铵
季铵盐
消毒
悬液定量法
表面消毒
didecyl dimethyl ammonium chloride
quaternary ammonium salt
disinfection
suspensionquantitative germicidal test
surface disinfection
