国产中性戊二醛的现场试用

<正> 在实验室完成国产中性戊二醛试验项目的基础上,我们选了一些现场进行试用,以评价其消毒效果和确定使用期限。

FIELD TRIAL OF CHINA-MADE NEUTRAL GLUTARALDEHYDE

A disinfection trial of the 2% neutral solution of China-made glutaraldehyde was carried out in nine hospitals of Shanghai. The results showed that the pH value of the solution changed slightly while the concentration of glutaraldehyde decreased by 22.79% after four weeks of use for immersing medical instruments. The count of contaminating bacteria in the solution of the disinfectant examined on 29th day was more than 250/ml, When 2% neutral solution of glutaraldehyde after 3～4 weeks of use was tested in disinfection experiments, it could destroy HBsAg completely and kill more than 99.999% of Bacillus subtilis var, niger spore after 20 minutes and 8 hours of action respectively, The field trial showed that 20% neutral solution of China-made glutaraldehyde can be used continuously for 3～4 weeks.