Atomic absorption spectroscopy

Optics: measuring and testing – By dispersed light spectroscopy – With background radiation comparison

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

356312, 356315, G01J 342, G01N 2172, G01N 2174

Patent

active

043414702

ABSTRACT:
A method and apparatus for carrying out atomic spectroscopy, and particularly atomic absorption and atomic fluorescence spectroscopy. The method involves passing the emission spectrum of a light source through an atomized sample, changing the relationship between a selected emission line of the emission spectrum and a corresponding absorption line of the atoms of interest and measuring the absorption of that emission line by the sample before and after the aforementioned change in relationship. The change in emission and absorption line relationship can be effected by application of the Zeeman Effect, Stark Effect, or Doppler Effect. The apparatus, in one form, includes an electro-magnet operative to apply a magnetic field to the atomized sample and thereby cause splitting and shifting of the aforementioned absorption line, and the magnet is modulated to effect periodic variation of the spectral line relationship.

REFERENCES:
patent: 3513381 (1970-05-01), Happer
patent: 3676004 (1972-07-01), Prugger et al.
Koizumi et al., Analytical Chemistry, vol. 47, No. 9, Aug. 1975, pp. 1679-1682.
Koizumi et al., Analytical Chemistry, vol. 48, No. 8, Jul. 1976, pp. 1178-1182.
Koizumi et al., Spectrochimica Acta, vol. 31 B, 1976, pp. 237-255.
Koizumi et al., Spectrochimica Acta, vol. 31 B, 1976, pp. 523-535.
McLaughlin, Science, vol. 174, Oct. 1971, pp. 404-407.
Hendrikx-Jongerius et al., Analytica Chimica Acta, vol. 87, No. 2, 1976, pp. 259-271.
Dawson et al., Analyst, vol. 101, Apr. 1976, pp. 315-316.
Stephens et al., Talanta, vol. 22, 1975, pp. 655-658.
Hollander et al., Combustion and Flame, vol. 13, No. 1, Feb. 1969, pp. 63-70.
van Heek, Spectrochimica Acta, Part B, Atomic Spectroscopy, vol. 25 B, No. 2, Feb. 1970, pp. 107-109.
West et al., Analytica Chimica Acta, vol. 45, Mar. 1969, pp. 27-41.
Wood, Physical Optics, New York, The Macmillan Company, 1911, pp. 530-547.
Chapman et al., Journal of Physics B, Atomic and Molecular Physics, vol. 3, No. 1, Jan. 1970, pp. 72-83.
Series, Journal of Physics B, Atomic and Molecular Physics, vol. 3, No. 1, Jan. 1970, pp. 84-97.
Dodd et al., Journal of Physics B, Atomic and Molecular Physics, vol. 3, No. 2, Feb. 1970.
Gough, Journal of Physics B, Atomic and Molecular Physics, vol. 3, No. 12, Dec. 1970, pp. 1636-1945.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Atomic absorption spectroscopy does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Atomic absorption spectroscopy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Atomic absorption spectroscopy will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2022976

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.