0.1%的过氧乙酸的杀菌效果,持续120秒，能杀灭多少细菌？若此浓度灭菌效果要达到99%以上需要多少时间_百度知道
0.1%的过氧乙酸的杀菌效果,持续120秒，能杀灭多少细菌？若此浓度灭菌效果要达到99%以上需要多少时间
提问者采纳
单纯延长时间并不能起作用，如果要杀菌的地方有很强的还原性，这时就需要提高浓度，效果就差，即能达到杀菌目的.2%－1%的过氧乙酸稀溶液；如对物体表面进行消毒，擦拭后保持30分钟，可用浓度为0.2%的溶液擦拭1－2分钟，再用清水洗净，例如有大量蛋白质或多糖存在。对手的消毒用0，会消耗过氧乙酸要看在什么环境下。如果表面有大量蛋白粘液则需要提高浓度或增大用量
杀菌环境无强还原性物质，本身含有的微生物数量也不是很多，
The study by Shimura, et al. was a case control study, developed on a flowchart. Six sterile glasses surfaces (40x30cm) were contaminated with a suspension with 104 cfu/ml MRSA by spreading with a sterile spatula and left to dry for 10 minutes. The efficacy of disinfection products were measured by imprinting rodac plates with Trypticase Soy Agar holding for 1 minute against the surface, before and after the disinfection procedure. The glass surface was divided in three parts and each part was cleaned three times. A sterile microfiber cloth (40x38cm) made from 10 percent polyester, 20 percent polypropylene and 70 percent viscose was folded three times, with a total of 16 sides, but u they were moistened with 50ml of 0.1 percent peracetic acid or 70 percent ethyl alcohol to clean three surfaces each. Sterile gloves were used and imprints from both hands were made on rodac plates, holding for 15 seconds. Plates were incubated at 37°C for 48 hours. The median of surface contamination before and after disinfection with peracetic acid was 3.55 cfu/ml and 0 cfu/ml, for ethyl alcohol, 4.26 cfu/ml and 0 cfu/ml respectively. Imprints of gloves after both disinfections had no growth (0 cfu/ml). The test showed a bacterial load reduction although a non-significant (p&0.05) result comparing solutions.
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出门在外也不愁2003年“非典”曾在我国流行，民间都用过氧乙酸（CH3COOOH）作为消毒剂，因它具有很强的氧化性和腐蚀性，可以迅速杀灭多种微生物，包括多种病毒（如：SARS病毒）、细菌、真菌及芽孢．有关过氧乙酸的叙述不正确的是（　　）A．过氧乙酸与羟基乙酸（HOCH2COOH）互为同分异构体B．过氧乙酸因具有强氧化性，所以有杀菌作用C．在使用过氧乙酸消毒时浓度不是越大越好D．过氧乙酸与苯酚混合使用杀菌能力更强查看本题解析需要登录您可以：（1）免费查看更多试题解析（2）查阅百万海量试题和试卷推荐试卷&
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