Optics: measuring and testing – By dispersed light spectroscopy – With sample excitation
Patent
1982-09-20
1984-11-13
Evans, F. L.
Optics: measuring and testing
By dispersed light spectroscopy
With sample excitation
219121PM, 219121PN, 219121PQ, 31323131, 31511151, G01N 2173
Patent
active
044822464
ABSTRACT:
Disclosed is a novel apparatus for the production of a sustained inductively coupled non-argon plasma discharge in flowing gas in a 13-25 mm (analytical size) containment tube at atmospheric pressure. The apparatus is developed for elemental analysis of injected aerosol or powdered samples, and particularly for air monitoring applications.
REFERENCES:
patent: Re29304 (1977-07-01), Greenfield et al.
patent: 4266113 (1981-05-01), Denton et al.
Scott et al., "Inductively Coupled Plasma-Optical Emission Analytical Spectrometry", Anal. Chem., vol. 46, No. 1, pp. 75-80, Jan. 1974.
Allemand et al., "A Study of Inductively Coupled Plasma Torch Configurations", Applied Spectroscopy, vol. 31, No. 5, 1977, pp. 434-443.
Barnes et al., "Low-Power Inductively Coupled Nitrogen Plasma Discharge for Spectrochemical Analysis", Anal. Chem. 1980, 52, 1523-1525.
Fassel et al., Anal. Chem., vol. 37, No. 7, Jun. 1965, p. 921.
Boumans et al., Spectrochemical Acta, 30B, pp. 312-315, 1975.
Greenfield et al., Anal. Chim., 74, 233-236, 1975.
Barnes Ramon M.
Meyer Gerhard A.
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