Method of emission spectroanalysis

Details Method of emission spectroanalysis Method of emission spectroanalysis

1983-03-08

1985-07-30

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

356334, G01J 318, G01N 2173

Patent

active

045318360

ABSTRACT:
A spectroanalytical method includes the steps of exciting material to spectroemissive levels, dispersing radiation from the excited sample material into a spectrum, positionally locating a reference constituent of the excited material in the spectrum, the reference constituent having a known wavelength offset from an element of interest in the sample material to be analyzed, and then shifting the known wavelength offset by an essentially hysteresis free mechanism and making an analytical measurement at that wavelength offset position of radiation produced by a spectrum from sample material that has been excited to spectroemissive levels.

REFERENCES:
patent: 4326802 (1982-04-01), Smith et al.
Spillman et al., Analytical Chemistry, vol. 48, No. 2, Feb. 1976, pp. 303-311.

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