Boots – shoes – and leggings
Patent
1988-06-02
1990-01-09
Lall, Parshotam S.
Boots, shoes, and leggings
356307, 356317, 356326, 250281, G01J 336, G01N 2164
Patent
active
048932590
ABSTRACT:
A method and apparatus for standardizing spectral line intensities in a spectral monochromator separate an input beam into a sample spectral line characteristic of a sample element, a reference spectral line, a standard spectral line and a background spectral band. At a first point in time an intensity I.sub.A of the sample line, a first intensity I.sub.R1 of the reference line and a first intensity I.sub.B1 of the background band are measured. At a second point in time an intensity I.sub.S of the standard line, a second intensity I.sub.R2 of the reference line and a second intensity I.sub.B2 of the background band are measured. An intensity ratio IR defined by the formula ##EQU1## is computed wherein the intensity ratio IR represents a standardized intensity of the sample line compensated for source fluctuations.
REFERENCES:
patent: 4093991 (1978-06-01), Christie, Jr. et al.
patent: 4239390 (1980-12-01), Scherer
patent: 4300833 (1981-11-01), Harnly et al.
patent: 4462685 (1984-07-01), Smith, Jr. et al.
patent: 4560275 (1985-12-01), Goetz
patent: 4622468 (1986-11-01), Stefanski et al.
patent: 4632549 (1986-12-01), Czabaffy et al.
patent: 4692883 (1987-09-01), Nelson et al.
patent: 4779216 (1988-10-01), Collins
S. A. Myers and D. H. Tracy "Improved Performance Using Internal Standardization in Inductively-Coupled Plasma Emission Spectroscopy", Spectrochimica Acta, 38B, 1227-1253, Feb. 1983.
Collins John B.
Grosser Zoe A.
Pruszkowski Ewa M.
Grimes E. T.
Ingham H. S.
Lall Parshotam S.
Mattson Brian M.
The Perkin-Elmer Corporation
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