Zeeman atomic absorption spectrophotometer

Details Zeeman atomic absorption spectrophotometer Zeeman atomic absorption spectrophotometer

1981-09-03

1984-05-22

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

With background radiation comparison

356315, 364498, G01N 2172

Patent

active

044498209

ABSTRACT:
A Zeeman atomic absorption spectrophotometer which monitors atomic absorption signals after a sample is introduced into the chemical flame atomizing portion. A signal peak value is measured in the portion of atomic absorption signals rising after the sample is introduced, or in the portion of atomic absorption signals breaking after the introduction of the sample is discontinued. A relation between the peak value and the sample concentration establishes a monovalent function. According to the conventional method, a relation between an average value of atomic absorption signals within a predetermined period of time and the concentration of specimen establishes a divalent function, and it is difficult to measure the samples, particularly in high-concentration regions. According to the present invention, however, it is possible to measure the samples of even high concentrations without having to dilute the samples.

REFERENCES:
patent: 4341470 (1982-07-01), Parker et al.
patent: 4377342 (1983-03-01), Koizumi et al.

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