Patent ID: 6421614
Filing Date: 2002-07-16
Classification: G01N

Abstract:
A system for obtaining reliable chemometric data from a sample including components from a chemical process under at least one variable sample condition, comprising:a. a fixed filter photometer for obtaining data representing a sample characteristic by interacting at least a first beam of electromagnetic radiation at a first wavelength possessing a narrow band width, and a second beam of electromagnetic radiation at a second wavelength possessing a narrow bandwidth, said first and second wavelengths relating to components in the sample; and b. means for determining the reliability of said data representing a sample characteristic, said means utilizing a training set of data representing said sample characteristic being repeatedly determined by varying the value of at least one sample condition at said first and second wavelengths, a mean center of said training set of data at said first and second wavelengths, and a number representing the amount of variation between said mean center of said training set of data and said data representing a sample characteristic, to determine outliers of said data representing a sample characteristic.