Zeeman atomic absorption spectrophotometer

Details Zeeman atomic absorption spectrophotometer Zeeman atomic absorption spectrophotometer

1981-02-23

1983-03-22

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

With background radiation comparison

356312, 364498, G01J 342, G01N 2174

Patent

active

043773427

ABSTRACT:
In a Zeeman atomic absorption spectrophotometer, an atomic absorption signal in an atomization stage is observed. The length of time between an instant at which the signal initially attains a predetermined absorbance and an instant at which the signal attains the same predetermined absorbance for the last time during the atomization stage is measured. By utilizing this time measurement as an indication of concentration, the concentration of the sample can be measured at higher concentrations than the limit concentration in the analysis by a conventional apparatus of this kind.

REFERENCES:
patent: 4035083 (1977-07-01), Woodriff et al.
Koizumi et al., Spectrachimica Acta, vol. 31 B, No. 10-12, 1976, pp. 523-535.

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