| 祝庆荃,何来英,袁洽劻.新型生物指示剂在紫外线消毒方面的应用[J].Chinese journal of Epidemiology,1988,9(1):33-35 |
| 新型生物指示剂在紫外线消毒方面的应用 |
| An Application of Now Type Eiological Indicator in Ultraviolet Disinfection |
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| DOI： |
| KeyWord: 生物指示剂 紫外线 消毒 |
| English Key Word: Biological indicator Ultraviolet Disinfection |
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| Abstract: |
| 用一种可穿透紫外线的可溶性菌膜作为生物指示剂,检查紫外线的消毒效果。当紫外线剂量为12000μw·s/cm2时可杀灭99.9%以上金黄色葡萄球菌;50000μw·s/cm2可杀灭99.9%以上枯草杆菌芽孢。并且证明杀菌效力不完全取决于紫外线强度的高低,而照射剂量的大小在消毒效果中起关键作用。应用时根据不同消毒对象,调节照射时间,计算所需照射剂量,即可达到保证消毒质量的目的。应用新型生物指示剂检查紫外线消毒效果除简化操作程序外,还可以提高细菌回收的准确度及试验的重复性。 |
| English Abstract: |
The detection of the effect of disinfection of ultraviolet by using a soluble bacteria film which could been passed through by ultraviolet as a biological indicator was carried out. When the dose of ultraviolet was 12000μw.s/cm2, more than 99.99% of S. aureus could been killed. When the dose was 50000μw.s/cm2, more than 99.9% Subtilis varniger could beenkilled. It was showed that the bactericidal ability was not completely depended on the degree of intensity of ultraviolet, the doses of UV light had a key role in the effect of disinfection.
In order to get the guarantee of quality of disinfection, one could also calculate the doses of UV light by adjusting the irradiated time according to the various objects.
The advantages of this new type biological indicator for detecting the effect of UV disinfection were to increase the degree of accuracy for recovery of bacteria and repeatability of experiments. |
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