solution containing imidazole 1 5 hydrogen peroxide 60 ppm pluronic f127 0 1 glycerin 0 5 was prepared the ph was adjusted to ph 7 37 polyhexamethylene biquanide phmb was added to half of this solution to yield a final concentration of 1 ppm an second set of aqueous solution containing imidazole 1 5 pluronic f127 0 1 glycerin 0 5 was prepared the ph was adjusted to ph 7 35 polyhexamethylene biquanide phmb was added to half of this solution to yield a final concentration of 1 ppm a third set of aqueous solutions containing pluronic f127 0 1 and glycerin 2 was prepared the ph was adjusted to ph 7 65 polyhexamethylene biquanide phmb was added to half of this solution to yield a final concentration of 1 ppm a fourth set of aqueous solutions containing hydrogen peroxide 60 ppm pluronic f127 0 1 and glycerin 2 3 was prepared the ph was adjusted to ph 7 35 polyhexamethylene biquanide phmb was added to half of this solution to yield a final concentration of 1 ppm each of these solutions were tested for their activity against s aureus and c albicans the data are summarized in the following table the results of this analysis indicates the effect of ph on the ability to disinfect the solution against c albicans the following examples illustrate various formulations that have been.