Patent ID: 6558956
Filing Date: 2003-05-06
Classification: G01N,Y10S,Y10T

Abstract:
A method for detection of a controlled substance, comprising the steps of:a) establishing a Raman spectroscopic sample surface; b) placing a diazonium compound sensor coating on said Raman spectroscopic sample surface; c) subjecting said diazonium compound sensor coating to a sample; d) retaining a diazonium-reactive controlled substance in said sample on said diazonium compound sensor coating on said Raman spectroscopic sample surface; e) exposing said diazonium-reactive controlled substance retained by said diazonium compound sensor coating on said Raman spectroscopic sample surface to radiation having at least one wavelength of energy; f) affecting a change in frequency of said at least one wavelength of energy at least in part by said diazonium-reactive controlled substance retained by said diazonium compound sensor coating on said Raman spectroscopic sample surface; g) detecting a Raman spectroscopic signal including said change in frequency of said at least one wavelength of energy; and h) analyzing said Raman spectroscopic signal to gain information about said diazonium-reactive controlled substance.