Patent ID: 9354165
Filing Date: 2016-05-31
CPC Classification: G01J,G01N

Claim Text:
1. An analyser identifying in or verifying or otherwise characterising a sample comprising: an electromagnetic radiation source for emitting electromagnetic radiation in at least one beam at a sample, the electromagnetic radiation comprising at least two different wavelengths, a sample detector that detects affected electromagnetic radiation resulting from the emitted electromagnetic radiation affected by the sample and provides output representing the detected affected radiation, and a processor for determining sample coefficients from the output, and identifying or verifying or otherwise characterising the sample using the sample coefficients and training coefficients determined from training samples, wherein the sample and/or training samples comprise a substance in a dilutant with a concentration and the sample coefficients and/or training coefficients are independent of the concentration, and wherein each sample coefficient is determined by: where g X is the concentration of the substance in the dilutant, B denoting blind test sample, g