一种稳定性二氧化氯消毒液的消毒效果观察

STUDY ON GERMICIDAL EFFICACY OF A STABLE CHLORINE DIOXIDE DISINFECTANT

目的观察一种稳定性二氧化氯消毒液的消毒效果。方法采用悬液定量杀菌试验和现场消毒试验进行了消毒效果检测。结果用浓度19.7 mg/L该二氧化氯消毒液作用10 min,对悬液内大肠杆菌和金黄色葡萄球菌的杀灭对数值均>5.00;用浓度65.7 mg/L的该二氧化氯消毒液作用45 min,对悬液内枯草杆菌黑色变种芽孢的杀灭对数值>5.00。用浓度39.4 mg/L的该二氧化氯消毒液对物体表面擦拭消毒并作用10 min,对黄瓜表面人工污染的大肠杆菌杀灭对数值均>3.0,对物体表面自然菌杀灭对数值均>1.00。结论该稳定性二氧化氯消毒液对细菌繁殖体和细菌芽孢有较好的杀菌作用,现场实际消毒效果能达到规定要求。

Objective To observe the germicidal efficacy of a stable chlorine dioxide disinfectant.Methods Suspension quantitative germicidal test and field disinfection trial were used to carry out experimental observation.Results The killing logarithm values of Staphylococcus aureus and Escherichia coli exposed to the solution containing chlorine dioxide 19.7 mg/L for 10 min were 5.00;the killing logarithm values of Bacillus subtilis var.niger spores exposed to the solution containing chlorine dioxide 65.7 mg/L for 45 min were 5.00.In field trial,the killing logarithm value of nature bacteria on the surface of objects wiped with the disinfection solution containing chlorine dioxide 39.4 mg/L for 10 min was 1.00;that of E.coli on the surface of cuke was 3.00.Conclusion The stable chlorine dioxide disinfectant has good germicidal efficacy on bacteria vegetative and bacteria spores.The field disinfection effect can also meet the requirement.