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过氧乙酸(简称PAA)是高效低毒的消毒防腐药,杀菌谱广,对各种细菌繁殖体、芽胞、霉菌和部分病毒都具有杀灭效果,临床应用颇广,在按需要的浓度用原液稀释时,有两种稀释法,一是按PAA的实际含量计算;一是将市售18~20%PAA作100%计算,究竟何者正确,下面予以讨论。一、市售的PAA有两种,一种是单组份PAA,浓度为18~20%;二种是两组份PAA,甲组份为冰醋酸,乙组份为过氧化氢,用时将甲组份二份和乙组份一份置玻璃或塑料容器中充分混合,放置24小时即得,浓度为18~20%。两组份PAA的特点是
Peracetic acid (referred to as PAA) is a highly efficient and low toxicity disinfectant antiseptic, broad spectrum bactericidal effect on a variety of bacterial propagules, spores, molds and some viruses have a killing effect, the clinical application is quite wide, at the required concentration When the stock solution is diluted, there are two dilution methods, one is to calculate according to the actual content of PAA; the other is to make a commercial calculation of 100% of PAA from 18 to 20%. First, there are two commercially available PAA, one is a one-component PAA, a concentration of 18 to 20%; two are two-component PAA, a component of glacial acetic acid, B as hydrogen peroxide, A group of two parts and a group B glass or plastic containers were fully mixed, placed 24 hours or so, the concentration of 18 to 20%. Two-component PAA is characterized by