Patent ID: 6263725
Filing Date: 2001-07-24
Classification: G01N

Abstract:
A method for identifying and measuring a characteristic of a colloidal mixture comprising the steps of:irradiating at least a first portion of the colloidal mixture with light in an ultraviolet-visible region at a first temperature and obtaining a first measurement of a first wavelength within the ultraviolet-visible region, said first measurement for obtaining a measure of one of an absorption, emission and scattering of the first wavelength when said colloidal mixture is irradiated with the light;waiting for the temperature of the colloidal mixture to change;irradiating at least a second portion of the colloidal mixture with light in an ultraviolet-visible region at a second different temperature and obtaining a second measurement of the first wavelength within the ultraviolet-visible region; said second measurement for obtaining a measure of one of an absorption, emission and scattering of the first wavelength when said colloidal mixture is irradiated with the light; anddetermining the characteristic of the colloidal mixture from a relationship including the first measurement and the second measurement.