Emission spectrochemical analyzer

Details Emission spectrochemical analyzer Emission spectrochemical analyzer

1984-09-07

1988-05-10

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

G01N 2173

Patent

active

047431113

ABSTRACT:
An improved emission spectrochemical analyzer is disclosed in which light from a sample in high-temperature plasma is led to an absorption cell, a magnetic field is applied to the absorption cell to utilize the Zeeman effect, the absorption cell is further pressurized to make the width of the absorption line of a desired element equal to the width of the resonance emission line of the element, and only the resonance emission line of the element is selected by appropriate modulation means and detected at high sensitivity.

REFERENCES:
patent: 3449565 (1969-06-01), Barringer
patent: 4035083 (1977-07-01), Woodriff et al.
patent: 4068125 (1978-01-01), Bell

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