OBSERVATION ON DISINFECTION PROPERTIES OF A NEW-TYPE COMPOUND HYDROGEN PEROXIDE HAND DISINFECTANT

Objective To study the disinfection properties of a compound hydrogen peroxide hand-disinfectant. Methods Suspension quantitative test and physical and chemical method were used to observe the germicidal efficacy and stability of this compound disinfectant. Results This compound disinfectant contained 15.5g/L hydrogen peroxide and 20%(v/v) alcohol.The killing logarithm values of Staphylococcus aureus and Pseudomonas aeruginosa exposed to this compound disinfectant containing 10.85 g/L hydrogen peroxide for 1 min and 0.5 min respectively were ≥5.00.That of Candida albicans exposed to this compound disinfectant containing 12.40 g/L hydrogen peroxide for 1min was ≥4.00.The killing logarithm value of natural bacteria on hands wiped with this compound disinfectant containing 12.40 g/L hydrogen peroxide for 1 min was 1.00.The content of hydrogen peroxide decreased by 5.81% in average after stored at 37℃ for 90 days in airtight package. Conclusion The compound hydrogen peroxide hand-disinfectant has good germicidal efficacy on vegetative form of bacteria and yeast fungus and has good stability.