Method for creating spectral instrument variation tolerance in calibration algorithms
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United States of America Patent
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Sep 2, 2003
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app pub date -
Aug 28, 2001
filing date -
Aug 28, 2000
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Abstract
The present invention relates to a method of building instrument variation tolerance into calibration algorithms for spectroscopic devices for chemical composition analysis with spectroscopic methods. The method of the present invention is particularly suitable for blood glucose, cholesterol and other chemical components prediction based on near-infrared spectrophotometry measurements. A method includes developing a calibration algorithm on a first instrument; applying the calibration algorithm to a second instrument; calibrating the second instrument and adjusting the calibration algorithm to account for differences between the first instrument and the second instrument; and repeating the step of applying (above) in respect of (n) further instruments to provide a calibration algorithm which may then be used on other instruments. Methods are also provided that develop calibration algorithms by adding instrument variations, based on mathematical manipulation, of the spectral data collected on calibration instruments.
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