Spectrometer

Details Spectrometer Spectrometer

1985-01-16

1986-05-27

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

356317, G01J 3443, G01N 2164, G01N 2173

Patent

active

045912670

ABSTRACT:
A fluorescence spectrometer for multielement analysis including a source for atomizing a dispersed sample along an axis and a plurality of energizers and detectors preferably arranged in pairs about the source, with each of the pairs designed for analyzing one element. Preferably, the source is an inductively coupled plasma. Means is provided for each of the pairs to view a different segment of the source along its axis, depending on the element to be analyzed. Preferably, such means includes: a source movable along its axis; fiber optics interposed between the energizers and the source and between the source and the detectors; and a movable optical element interposed between the energizers and the source and between the source and the detectors. The spectrometer further features a polychromator for use in lieu of matched optical filters in the detectors and demountable hollow cathode lamps as energizers.

REFERENCES:
patent: 2663801 (1953-12-01), Slavin et al.
patent: 2847899 (1958-08-01), Walsh
patent: 3428401 (1964-02-01), Buzza
patent: 3619061 (1971-11-01), Mitchell
patent: 3699383 (1972-10-01), Chaney
patent: 3958883 (1976-05-01), Turner
patent: 4293220 (1981-10-01), Denton et al.
patent: 4300834 (1981-11-01), Demers et al.
patent: 4326802 (1982-04-01), Smith, Jr. et al.
patent: 4375919 (1983-03-01), Busch
patent: 4432644 (1984-02-01), Demers et al.
Measures et al., "Analyzing Fluorescence Decay", Lasar Focus, Nov. 1974, pp. 49-52.
Mitchell et al., "Simultaneous Multielement Analysis Using Sequentially . . . ", Spectrochimica Acta, vol. 25B.
A. Montaser and V. A. Fassel, "Inductively Coupled Plasmas as Atomization Cells . . . ", Analytical Chem., vol. 48, No. 11.
V. A. Fassel, "Quantitative Elemental Analyses . . . ", Science, vol. 202, Oct. 13, 1978, pp. 183-191.
V. A. Fassel and R. N. Kniseley, "Inductivity Coupled Plasma-Optical Emission Spectroscopy", Analytical Chemistry, vol. 46, No. 13, (Nov. 1974).
V. A. Fassel and R. N. Kniseley, "Inductivity Coupled Plasma", Analytical Chemistry, vol. 46, No. 13, (Nov. 1974), pp. 1155A-1164A.
D. G. Mitchell, "Simultaneous Multi-Element Analysis . . . ", Technicon Ind. Congress, Nov. 2-4, 1970, NYC.
Lichte et al., Analytical Chemistry, vol. 52, No. 1, Jan. 1980, pp. 120-124.
Mavrodineanu et al., Applied Optics, vol. 7, No. 7, Jul. 1968, pp. 1281-1285.
Demers, Applied Spectroscopy, vol. 22, No. 6, Nov.-Dec. 1968, pp. 797 and 798.
Winefordner et al., Applied Spectroscopy, vol. 29, No. 5, Sep.-Oct., 1975, pp. 369-385.

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