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Title: Classical least squares multivariate spectral analysis

Abstract

An improved classical least squares multivariate spectral analysis method that adds spectral shapes describing non-calibrated components and system effects (other than baseline corrections) present in the analyzed mixture to the prediction phase of the method. These improvements decrease or eliminate many of the restrictions to the CLS-type methods and greatly extend their capabilities, accuracy, and precision. One new application of PACLS includes the ability to accurately predict unknown sample concentrations when new unmodeled spectral components are present in the unknown samples. Other applications of PACLS include the incorporation of spectrometer drift into the quantitative multivariate model and the maintenance of a calibration on a drifting spectrometer. Finally, the ability of PACLS to transfer a multivariate model between spectrometers is demonstrated.

Inventors:
 [1]
  1. Albuquerque, NM
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
874560
Patent Number(s):
6415233
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
classical; squares; multivariate; spectral; analysis; improved; method; adds; shapes; describing; non-calibrated; components; effects; baseline; corrections; analyzed; mixture; prediction; phase; improvements; decrease; eliminate; restrictions; cls-type; methods; greatly; extend; capabilities; accuracy; precision; application; pacls; ability; accurately; predict; sample; concentrations; unmodeled; samples; applications; incorporation; spectrometer; drift; quantitative; model; maintenance; calibration; drifting; finally; transfer; spectrometers; demonstrated; analysis method; /702/430/

Citation Formats

Haaland, David M. Classical least squares multivariate spectral analysis. United States: N. p., 2002. Web.
Haaland, David M. Classical least squares multivariate spectral analysis. United States.
Haaland, David M. Tue . "Classical least squares multivariate spectral analysis". United States. https://www.osti.gov/servlets/purl/874560.
@article{osti_874560,
title = {Classical least squares multivariate spectral analysis},
author = {Haaland, David M},
abstractNote = {An improved classical least squares multivariate spectral analysis method that adds spectral shapes describing non-calibrated components and system effects (other than baseline corrections) present in the analyzed mixture to the prediction phase of the method. These improvements decrease or eliminate many of the restrictions to the CLS-type methods and greatly extend their capabilities, accuracy, and precision. One new application of PACLS includes the ability to accurately predict unknown sample concentrations when new unmodeled spectral components are present in the unknown samples. Other applications of PACLS include the incorporation of spectrometer drift into the quantitative multivariate model and the maintenance of a calibration on a drifting spectrometer. Finally, the ability of PACLS to transfer a multivariate model between spectrometers is demonstrated.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

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Works referenced in this record:

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