Mineral prospecting by the detection of radon or iodine

Details Mineral prospecting by the detection of radon or iodine Mineral prospecting by the detection of radon or iodine

1977-07-20

1980-09-09

McGraw, Vincent P.

Optics: measuring and testing

With sample preparation

23230EP, 356316, G01N 100, G01J 300

Patent

active

042214823

ABSTRACT:
A method of detecting the presence of a coating of gaseous molecules on the surface of solid particulate material comprising the steps of entrapping the particulate material in a chemically inert carrier gas, heating the said material to release the gaseous molecules adsorbed on the particles, separating the particles from the carrier gas and the previously adsorbed gas molecules, passing the gases to a plasma, and spectroscopically analyzing the light emitted therefrom to detect the presence of the previously adsorbed gas.

REFERENCES:
patent: 2330829 (1943-10-01), Lundberg et al.
patent: 3759617 (1973-09-01), Barringer
patent: 3868222 (1975-02-01), Barringer
patent: 4056969 (1977-11-01), Barringer
patent: 4136951 (1979-01-01), Macourt

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