EXPERIMENTAL OBSERVATION ON GERMICIDAL EFFICACY AND RELATED PROPERTIES OF AN IODOPHOR DISINFECTION SOLUTION

Indophor disinfection solution is composed of iodine and polyalcohol ether surfactant.In order to know its germicidal efficacy and other related properties,suspension quantitative germicidal test and physicochemical analysis method were used to carry out laboratory observation.Results: The killing logarithm of Staphylococcus aureus,Escherichia coli and Pseudomonas aeruginosa exposed to the disinfection solution containing available iodine 250 mg/L for 1.5 min was 5.00 and that of Candida albicans exposed for 1.5 min was 4.00.The results of field trial indicated that wiping disinfection of skin of hands and arms of volunteers with the disinfectant containing available iodine 2500 mg/L for 3 min resulted in a killing logarithm of the natural bacteria 1.00.After the stock solution of the disinfectant was stored at 37℃ for 6 months,its available iodine content decreased by 0.99%.Conclusion: Xi-De-Bao iodophor disinfection solution has good germicidal efficacy and good stability.