Determinaçäo da concentraçäo mínima do cloridrato de poli-hexametileno biguanida (PHMB), em testes de inibiçäo in vitro com microorganismos de origem ambiental

Determination of the minimal concentration of the hydrochloride of poli-hexamethylene biguanide (PHMB), in tests of inhibition in vitro with microorganisms from ambiental origin