Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1990-03-28
1991-05-14
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250341, 356 51, G01N 2135
Patent
active
050158562
ABSTRACT:
Permeability of structures consisting essentially of dispersions of barrier resins in permeable structural resins can be predicted by the application of near infrared spectroscopy, within the wavelength range of 600-2500 nm, especially 1100-2500 nm. The method requires establishing a correlation between base permeabilities of samples of a Training set and their near infrared spectra, developing from that correlation a predictive equation, verifying the accuracy of the predictive equation on samples of a Validation set, and applying the predictive equation to the determination of the permeabilities of unknown samples.
REFERENCES:
patent: 4423327 (1983-12-01), Alexander
patent: 4791296 (1988-12-01), Carpio
patent: 4800279 (1989-01-01), Hieftje et al.
Improved Selectivity in Spectroscopy by Multivariate Calibration, Martens et al., Journal of Chemometrics, vol. 1, 201-219 (1987).
E. I. Du Pont de Nemours and Company
Eisenberg Jacob M.
Hannaher Constantine
Steyermark Paul R.
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