Patent ID: 6271038
Filing Date: 2001-08-07
Classification: B01F,B01J,G01N,Y10T

Abstract:
A method for evaluating the solubility of a chemical in a formulation or test media, the method comprising:mixing a volume of a stock solution that has a known concentration of a chemical with a volume of a base liquid to form a control sample;mixing another volume of the stock solution with a volume of a formulation to form a test sample;passing the control sample through a capillary electrochromatography (CEC) tube to separate the chemical from the base liquid;passing the test sample through a CEC tube to separate the chemical from the formulation;measuring the amount of chemical passing through the CEC tubes for both the control sample and the test sample; andcomparing the measured amount of chemical from the control sample with the measured amount of chemical from the test sample to determine the solubility of the chemical in the formulation relative to the base liquid.