Method for determining the concentration of polyhexamethylene biguanide (PHMB) in aqueous solutions

摘要

spectrophotometric determination of the concentration poliheksametylenowego way... in aqueous solutions, is useful particularly to control the processes of water treatment. is characterized by the fact that apply bradford reagent (sour hydroalcoholic solution dye brilliant blue coomassie g - 250).both the reference solutions to designate the calibration curve and the sample for testing is prepared by mixing in the transparent tube portion of the analyte with the appropriate dose of the bradford reagent. measurement of absorbance is in the same tube at a wavelength of 600 nm against distilled water.behavior proposed measurement conditions permits the determination of phmb range from 0.5 to 20 mm meru.