Patent ID: 7519145
Filing Date: 2009-04-14
Classification: G01N

Abstract:
1. A method for determining whether or not chemical binding occurs between at least one target binder and at least one chemical to form a bound complex, comprising: preparing a solution comprising at least one chemical and at least one target binder; flow-separating the solution into at least two separated components; exciting atoms of the chemical and of a chemical portion of any bound complex present in any flow separated component with a polychromatic x-ray excitation beam in order to produce an x-ray fluorescence signal therefrom; detecting the x-ray fluorescence signal produced from the excited atoms present in the chemical and the chemical portion of any bound complex present in a separated component; and determining from the x-ray fluorescence signal produced from the excited atoms present in the chemical and the chemical portion of any bound complex present in a separated component whether or not any separated component comprises a bound complex.