Patent ID: 6707539
Filing Date: 2004-03-16
Classification: G01J,G01N

Abstract:
A method for determining relatedness of a sample to a standard, comprising:providing a chip, the chip comprising: a substrate; and a plurality of different light-emissive compounds attached to a surface of the substrate in a manner whereby the light-emissive compounds will interact with the sample, such interaction altering light emission from the light-emissive compounds versus light emission from the light-emissive compounds absent said interaction; wherein each of the different light-emissive compounds is attached at a location discrete from attachment of all other of the different light-emissive compounds; applying a sample to the surface of the chip; irradiating the sample with at least one irradiating wavelengths of light; detecting at least one emitted wavelength of light, to establish a sample emission profile; providing a standard fingerprint characteristic of a standard; and comparing the sample emission profile with the standard fingerprint to determine the relatedness of the sample and the standard.