Recent studies on iron meteorites. III Determination of the uranium and thorium contents

Details Recent studies on iron meteorites. III Determination of the uranium and thorium contents Recent studies on iron meteorites. III Determination of the uranium and thorium contents

Jun 1953

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1953gecoa...3..272d&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 3, Issue 6, pp.272-287

Computer Science

6

Scientific paper

Methods are described for the isolation of uranium and thorium, and some of their radioactive disintegration products, from 10 to 100 g samples of iron meteorites. The concentrations of these elements were of the order of 10 -8 g per g of meteorite. The methods used were liberation of radon and thoron, and classical co-precipitations and solvent extractions for isolation of uranium, ThB and ThC. Estimations of uranium by two methods are described, counting of radon in equilibrium with the uranium series in a gas counter, and fluorimetry. Thorium estimations were accomplished either by thoron gas counting or by -particle scintillation counting of equilibrium amounts of ThC in a counter of extremely low background.

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