Patent ID: 6651015
Filing Date: 2003-11-18
Classification: G01J,G01N

Abstract:
A method of determining the concentration of one or more Analytes in a Sample in a second apparatus comprising:(i) providing the second apparatus having at least one primary calibration algorithm for each of the one or more analytes, as obtained from one or more than one first apparatus, the at least one primary calibration algorithm using an order derivative of absorbance obtained for at least one of a standard set of wavelengths, wherein wavelengths of the standard set of wavelengths are the same as, or different from, wavelengths of a wavelength calibration table for the first apparatus, the second apparatus, or both the first and the second apparatus; (ii) measuring absorbance values of the sample at one or more than one wavelength from the standard set of wavelengths on the second apparatus; (iii) calculating a concentration of the one ore more Analyte in the sample, by applying the at least one Primary Calibration Algorithm to the order derivative of the absorbance values.