摘要
目的:了解本实验室所存菌种对常用消毒剂的抗性,从而合理使用消毒剂,避免实验室感染。方法:采用悬液定量杀菌试验分别测定75%乙醇、3%过氧化氢、碘伏和533消毒液对12种实验室保存菌种的平均杀灭对数值,采用K-B纸片法测定碘伏和533消毒液对12种菌种及其标准株的最低抑菌浓度(MICs)。结果:碘伏作用1 min时对12种菌种的杀灭对数值均>5.00;而533消毒液需作用8 min、75%乙醇和3%过氧化氢需作用40~50 min才能达到同样效果。碘伏和533消毒液对12种菌种的MICs分别为37.2~173.6、548~1 307 mg/L,其中533消毒液对12种菌种均表现出比标准株更高的MICs。结论:12种菌种对碘伏均未产生抗性,部分菌种对75%乙醇、3%过氧化氢和533消毒液产生抗性,说明应根据不同的消毒对象选择不同的消毒剂,且配制准确的浓度,才能达到良好的消毒效果。
OBJECTIVE:To detect the resistance to common disinfectants of 12 kinds of laboratory stored strains in our laboratory so as to use disinfectants rationally and avoid laboratory infection.METHODS:Suspension quantitative germicidal test was used to determine average germicidal logarithmic value of 75% ethanol,3% H2O2,iodophor and"533"disinfectants to 12 kinds of laboratory stored strains.K-B method was applied to test the minimal inhibitory concentrations(MICs)of iodophor and 533 disinfectants to 12 kinds of laboratory stored strains and standard strains.RESULTS:The average germicidal logarithm values of iodophor in 1 min were above 5.00,so did by"533"disinfectants in 8 min,3% H2O2and 75% alcohol in 40-50 min.MICs of iodophor and"533"disinfectant to 12 kinds of strains were 37.2-173.6 mg/L and 548-1 307 mg/L,respectively."533"disinfectants have higher MICs value to 12 kinds of strains,compare with standard strains.CONCLUSIONS:12 kinds of strains have no resistant to iodophor,while some strains are resistant to 75% ethanol,3% H2O2and"533"disinfectants.The disinfectants should be selected according to different objects,and sound disinfection effect can be achieved by accurate concentration.
出处
《中国药房》
CAS
CSCD
2014年第21期1943-1945,共3页
China Pharmacy
关键词
消毒剂
悬液定量杀菌试验
K-B纸片法
杀灭对数值
Disinfectants
Suspension quantitative germicidal test
K-B method
Germicidal logarithm values