Atomic spectroscopy

Details Atomic spectroscopy Atomic spectroscopy

1987-06-02

1989-04-25

Evans, F. L.

Optics: measuring and testing

With sample preparation

356312, 356244, G01N 2174

Patent

active

048242411

ABSTRACT:
A method of atomic spectroscopy is provided involving the steps of inserting a probe into a cuvette, depositing a sample to be atomized onto the probe by means of a sample dispenser, withdrawing the probe from the cuvette, heating the cuvette to a desired temperature sufficient to atomize the sample, and then reinserting the probe into the cuvette. The sample dispenser may be a manually-operated pipette, or the dosing tube of an autosampler. Liquid samples may be dried by heating the cuvette to a temperature lower than the atomization temperature before withdrawing the probe from the cuvette. Both solid and liquid samples may be atomized by this procedure. Such samples also may be ashed where appropriate by heating the cuvette to a second temperature between the first temperature and the atomization temperature before withdrawing the probe from the cuvette. A spectrophotometer using the technique is also described.

REFERENCES:
patent: 4406540 (1983-09-01), Grossman et al.
patent: 4443105 (1984-04-01), Huber et al.
Giri et al., The Analyst, vol. 108, No. 1283, Feb. 1983, pp. 244-253.
Manning et al., Analytical Chemistry, vol. 51, No. 14, Dec. 1979, pp. 2375-2378.

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