Optics: measuring and testing – By dispersed light spectroscopy – With background radiation comparison
Patent
1986-08-06
1991-02-12
McGraw, Vincent P.
Optics: measuring and testing
By dispersed light spectroscopy
With background radiation comparison
356315, G01N 2172, G01N 2131
Patent
active
049919601
ABSTRACT:
In an atomic absorption spectrometer, a burner 16 for atomizing a sample is movable between a first and a second position. In the first position, the "cloud of atoms" is formed in the area of the housing-fixed measuring light beam 14. In the second position, it is formed outside the measuring light beam. The measurement is made in the first position whereby the utilization of the energy of the measuring light beam is optimal. A drift compensation is made in the second position to take care of variations of the lamp intensity and of the detector sensitivity.
REFERENCES:
patent: 1967583 (1934-07-01), McFarlane et al.
patent: 2043589 (1936-06-01), Huller
patent: 4291986 (1981-09-01), Satou et al.
patent: 4406541 (1983-10-01), Tomoff et al.
patent: 4508451 (1985-04-01), Stockdale
"Mikrochim. Acta", Von Walter Lang, May 4, 1964, pp. 796-808, Flammenspektrophotometrische Absorptionsmessungen mit peridisch ausgelenkter Flamme.
Dencks Gunther
Huber Bernhard
Tamm Rolf
Tomoff Toma
Grimes Edwin T.
McGraw Vincent P.
Murphy Thomas P.
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