Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1975-03-06
1977-02-22
Bauer, Edward S.
Optics: measuring and testing
Range or remote distance finding
With photodetection
356 36, G01J 342
Patent
active
040089630
ABSTRACT:
A method of atomization of a sample for analysis by atomic absorption spectroscopy in which the sample is progressively heated to drying, ashing and atomization temperatures by subjecting it sequentially to discrete ambient temperature increments.
A preferred form of apparatus for carrying out the method takes the form of a graphite fabric conveyor belt which carries the sample substance and travels transversely through three hollow cylindrical graphite tubes disposed in spaced justaposition with longitudinal axes parallel. The belt passes through each tube in sequence, by way of pairs of aligned longitudinal slots in the sidewalls of the tubes, the slots defining a common chordal plane of the tubes. Each tube is maintained, respectively in the direction of belt travel, at drying, ashing and atomization temperature for the particular sample. The tubes are heated by an electrical current of appropriate magnitude passed between pairs of electrodes associated with the ends of the tubes. A beam of radiation of selected spectral characteristics is passed axially through the last tube to a detector which determines the degree of absorption of the radiation beam by the atomized sample in that tube.
REFERENCES:
patent: 3419359 (1968-12-01), Anderson
patent: 3832060 (1974-08-01), Dahlquist
Hauser, et al., Analytical Chemistry vol. 44, No. 11, Sept. 1972, pp. 1819-1821.
Advances in Automated Analysis, Technicon International Congress, 1969, vol. II, Mediad, Inc., N.Y., 1970, pp. 315- 320.
Huber Bernhard Werner
Tamm Rolf Gunther Arnold
Bauer Edward S.
Bodenseewerk Perkin-Elmer & Co. GmbH
Evans F. L.
Giarratana S. A.
Masselle F. L.
LandOfFree
Method of and device for the analysis of samples by means of fla does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of and device for the analysis of samples by means of fla, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and device for the analysis of samples by means of fla will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-321790