Abstract: A method for measuring a concentration of molecules, characterized in that the method measures the concentration of molecules dissolved in a continuous phase of a colloid and includes obtaining a test sample by mixing a number of molecules with a volume of colloid, obtaining a control sample by mixing a number of molecules with a volume of a composition comprising a particle-free solution extracted from a fraction of the continuous phase of same colloid used in the obtaining the test sample, so that a value of the concentration of molecules in the mixture is equal to the value of the concentration of molecules in the test sample obtained in the obtaining the test sample, and submitting the test and the control samples obtained in the obtaining the test sample and obtaining the control sample to a process in order to concentrate the particles of the test sample.

Abstract: A method for measuring a concentration of molecules, characterized in that the method measures the concentration of molecules dissolved in a continuous phase of a colloid and includes obtaining a test sample by mixing a number of molecules with a volume of colloid, obtaining a control sample by mixing a number of molecules with a volume of a composition comprising a particle-free solution extracted from a fraction of the continuous phase of same colloid used in the obtaining the test sample, so that a value of the concentration of molecules in the mixture is equal to the value of the concentration of molecules in the test sample obtained in the obtaining the test sample, and submitting the test and the control samples obtained in the obtaining the test sample and obtaining the control sample to a process in order to concentrate the particles of the test sample.

Abstract: The present invention relates to a kit and a method for assessing the electrostatic component of the surface of a material of interest by assessing the capacity to adsorb cationic or anionic molecules on the surface of the material of interest, and a method for assessing the lyophobic component of the surface of a material of interest by characterizing the adsorption and desorption of molecules without elementary charge from the surface of the material of interest.

Abstract: A process for obtaining a monophasic liquid composition from a volume of a colloid; a monophasic liquid composition extracted from a colloid; a Kit for measuring the concentration of molecules solubilized in the continuous phase of a colloid, and a method for measuring the concentration of molecules dissolved in the continuous phase of a colloid.