【摘要】 <正> 用消毒液擦拭是一种常用的消毒方法。为了解不同浓度过氧乙酸及次氯酸钠擦拭对物体表面细菌芽胞的杀灭效果,进行了模拟试验,现报告如下。更多还原

【Abstract】 The efficacy of disinfectant scrubbing in killing spores of Bacillus subtilis var. niger on surfaces of wood, lacquered table, glazed tile and rubber was observed in laboratory. The results showed that the germicidal action of peracetic acid was quicker than that of sodium hypochlorite and concentration required was also lower with acetic acid. When peracetic acid was used to treat the surfaces contaminated with 10% serum spore suspension, scrubbing with the disinfectant at a concentration of 1,000 ppm for 5 min could kill 99.99% of spores on various surfaces except the wooden surface on which only 99.89% of the spores was killed. When sodium hypochlorite was used, a solution containig 10,000 mg/L available chlorine with a 40 min contact time was required to achieve similar result. The efficacy of both disinfectants in disinfection of wooden surface was low and the efficacy in killing bacterial spores in absence of serum was high.更多还原