Patent ID: 6362006
Filing Date: 2002-03-26
Classification: G01N,Y10T

Abstract:
A method for analysis of at least one non-volatile analyte, comprising:providing a plurality of analytical samples comprising at least one non-volatile analyte for which the concentration is to be determined and at least one volatile component; providing an analytical matrix comprising a plurality of spatially differentiated analytical sites, each site comprising a sorbent material and a solvatochromic dye; delivering a known amount of each analytical sample onto at least one unique analytical site; subjecting the matrix to conditions effective to substantially evaporate the at least one volatile component of the analytical samples; irradiating a plurality of the analytical sites on the matrix with a first wavelength range; detecting a spectroscopic characteristic of the solvatochromic dye from each irradiated analytical site on the matrix with a second wavelength range; and determining a concentration of the non-volatile analyte at each irradiated analytical site based on the spectroscopic characteristic of the solvatochromic dye.