抄録
The bactericidal effects of commonly used disinfectants against clinically isolated bacteria were examined by the applied method of phenol coefficient measurement. The bacteria examined were 4 species of the clinically isolated strain, E. coli, P. aeruginosa, K. Pneumoniae and S. aureus, which were known to be the main bacteria causing the opportunistic infection. The bacterial broth was put into various concentrations of 9 different disinfectants, and each was inoculated into a fresh medium after 0.5, 2, 5, 15 and 30 minutes. This experiment revealed that there were many ineffective cases in the generally used concentrations.
We also did a questionnaire survey regarding the preparation and usage of disinfectants. The result showed that in many cases the preparation of disinfectant was made by eye measure, which might cause inaccurate concentrations. Therefore, we hospital pharmacists should be more concerned with hospital disinfection.
