Boots – shoes – and leggings
Patent
1988-07-19
1991-05-07
Lall, Parshotam S.
Boots, shoes, and leggings
G01N 2100
Patent
active
050142160
ABSTRACT:
A monobeam system for determining concentration changes of chromophore substance in a sample includes a flash lamp for passing a light beam through a sample containing the analyte. The values of absorbance by the sample at multiple wavelengths are measured and the optimum linear combination of absorbance values is determined to obtain a measure of chromophore concentration. Extinction coefficients for a chromophore is measured employing Deming's method and eigenvector transformations. A matrix reflecting the noise pattern of the system is determined. This matrix and the extinction coefficients are used in determining the coefficients for the optimum linear combination. An electronic module converts analog intensity data into digital data for five wavelengths. This is processed into absorbance values and concentration determinations.
REFERENCES:
patent: 3794425 (1974-02-01), Smith et al.
patent: 3810696 (1974-05-01), Hutchins Jr.
patent: 3820901 (1974-06-01), Kreuzer
patent: 4236894 (1980-12-01), Sommervold
patent: 4241998 (1980-12-01), Farkas et al.
patent: 4263512 (1981-04-01), Sagusa et al.
patent: 4267572 (1981-05-01), Witte
patent: 4455084 (1984-06-01), Webb, Jr. et al.
patent: 4482966 (1984-11-01), Mito et al.
patent: 4526470 (1985-07-01), Kaye
patent: 4544271 (1985-10-01), Yamamoto
patent: 4565447 (1986-01-01), Nelson
patent: 4587624 (1986-05-01), Banno
patent: 4590574 (1986-05-01), Edmonds et al.
patent: 4631687 (1986-12-01), Kowalski et al.
patent: 4642778 (1987-02-01), Hiefese et al.
patent: 4674880 (1987-06-01), Seki
patent: 4687329 (1987-08-01), Schultz
patent: 4696570 (1987-09-01), Joliot et al.
patent: 4715712 (1987-12-01), Nogami
patent: 4807148 (1989-02-01), Lacey
Plackett, R. L., Principles of Regression Analysis, pp. 33-51, Clarendon Press, Oxford, (1960).
Loosbroek et al., Analytical Letters, 17 (A8), 677-688 (1984), "Identification of Mixtures of Synthetic Organic Pigments Using UV-VIS Spectrophotometry and Kalman Filtering".
Zwart et al., Clinical Chemistry, 27:11, 1903-1907 (1981), "Determination of Hemoglobin Derivatives with the IL 282 CO-Oximeter as Compared with a Manual Spectrophotometric Five-Wavelength Method".
Margenau, H., and Murphy, G. M., The mathematics of Physics and Chemistry, pp. 311-332, D. Van Nostrand Company, Inc., Princeton, N.J. (1956).
Aday, Jr. Roy W.
McCollum Myron L.
Schmidt Robert L.
Stafford Roger A.
Beckman Instruments Inc.
Berman Charles
Hampson Gary T.
Lall Parshotam S.
May William H.
LandOfFree
Concentration determination with multiple wavelength flash photo does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Concentration determination with multiple wavelength flash photo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Concentration determination with multiple wavelength flash photo will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-944731