Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1998-01-28
1999-08-31
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
25033909, 25033911, 2503418, G01N 2135
Patent
active
059456760
ABSTRACT:
An apparatus is provided for determining the concentration of an analyte present in a sample using multi-spectral analysis in the near-infrared (NIR) range. Incident radiation containing a plurality of distinct, nonoverlapping spectral regions of wavelengths in the near-infrared range is used to irradiate the sample. Diffusively reflected radiation emerging from the sample is detected, and a value indicative of the concentration of the analyte is obtained therefrom, preferably using an application of chemometrics techniques. Information obtained from each of the nonoverlapping spectral regions of wavelengths can be cross-correlated to remove background interference.
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Khalil Gamal
Malin Stephen F.
Glenn Michael A.
Hannaher Constantine
Instrumentation Metrics, Inc.
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