摘要
目的观察复方次氯酸钠消毒液对器械的消毒性能。方法采用理化分析方法和载体定量杀菌试验方法进行了实验室观察。结果有效氯含量为10.90 g/L的器械消毒液原包装,置54℃温箱储存14 d,其有效氯下降率均值为5.41%;常温下浸泡72 h,其原液对不锈钢,铜无腐蚀。以含有效氯3300 mg/L的该消毒液对载体上枯草杆菌黑色变种芽孢作用7.5 m in,杀灭对数值>3.0;作用60 m in,对细菌芽孢可达到完全杀灭。医疗器械模拟现场试验,浸泡作用15 m in,对污染在器械上的枯草杆菌黑色变种芽孢杀灭对数值>3.0;作用60 m in,达到完全杀灭。连续使用5 d的该消毒液杀菌效果基本不下降,能量试验对金黄色葡萄球菌最低合格浓度为有效氯2400 mg/L。结论该器械消毒液性能稳定,对细菌芽孢具有较好的杀菌效果,对铜和不锈钢无腐蚀。
Objective To observe the properties of compound sodium hypochlorite disinfection solution for disinfection of instruments. Method Physicochemieal analysis method and carrier quantitative germicidal test were used to carry out laboratory observation. Results After storing the instrument disinfection solution containing available chlorine 10.90 g/L in original packing in 54℃ incubator for 14 days, its available chlorine decrease rate was 5.41% in average. Immersion in its stock solution for 72 h at room temperature did not corrode stainless steel and copper. The killing logarithm value of spores of Bacillus subtilis vat. niger on carrier exposed to the disinfection solution containing available chlorine 3300 mg/L for 7.5 min was 〉 3.0 and the spores were completely killed after exposure for 60 min. In simulated field trial of disinfection of medical instruments, immersion in the disinfection solution for 15 min killed B. subtilis vat. niger spores on the instruments by a logarithm of 〉 3.0 and immersion for 60 min completely killed the spores. After continuous use of the disinfection solution for 5 days, its germicidal efficacy did not decrease. Capacity test showed that the minimal eligible concentration of the disinfection solution for killing Staphylococcus aureus was available chlorine 2400 mg/L. Conclusion The instrument disinfection solution is stable, does not corrode copper and stainless steel and has good efficacy in killing bacterial spores.
出处
《中国消毒学杂志》
CAS
北大核心
2007年第1期43-45,共3页
Chinese Journal of Disinfection
关键词
器械消毒液
有效氯
稳定性
枯草杆菌黑色变种芽孢
杀菌效果
instrument disinfection solution
available chlorine
stability
Bacillus subtilis vat. niger spore
germicidal efficacy
