THE DETERMINATION OF TANTALUM AND TUNGSTEN IN ROCKS AND METEORITES BY NEUTRON ACTIVATION ANALYSIS
Journal Article
·
· Analytica Chimica Acta (Netherlands)
A method for the determination of sub-microgram amounts of tantalum and tungsten in rocks and meteorites by neutron activation analysis is described. Radiochemical separation from the components of the irradiated sample was employed to provide sources for measuring Ta/sup 184/ and W/sup 187/ by beta and gamma counting and by gamma spectrometry. Determinations of tantalum at the lower limit of 8 x 10/sup -10/ and tungsten at 2 x 10/sup -9/ g were made. Among the materials examined using the methcd were the intercomparison of rocks GI and WI. rock samples from the Skaergaard Intrusion of East Greenland. and a number of iron and stony meteorites. In addition. a number of standard steel samples of known tungsten content and one of known tantalum content were examined and good agreement was observed between the published results and those determined by activation analysis. (auth)
- Research Organization:
- Atomic Energy Research Establishment, Harwell, Berks, Eng.
- NSA Number:
- NSA-14-024087
- OSTI ID:
- 4152905
- Journal Information:
- Analytica Chimica Acta (Netherlands), Journal Name: Analytica Chimica Acta (Netherlands) Vol. Vol: 22; ISSN ACACA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
CONTRIBUTION TO THE DATING OF IRON METEORITES BY THE RHENIUM-OSMIUM METHOD
SIMULTANEOUS DETERMINATION OF NIUOBIUM AND TANYALUM BY NEUTRON ACTIVATION USING NIOBIUM -94m AND TANTALUM-182m AND RAPID RADIOCHEMICAL SEPARATIONS
TUNGSTEN ABUNDANCES IN METEORITIC AND TERRESTRIAL MATERIALS
Journal Article
·
Sun Oct 01 00:00:00 EDT 1961
· Z. Naturforsch
·
OSTI ID:4809618
SIMULTANEOUS DETERMINATION OF NIUOBIUM AND TANYALUM BY NEUTRON ACTIVATION USING NIOBIUM -94m AND TANTALUM-182m AND RAPID RADIOCHEMICAL SEPARATIONS
Journal Article
·
Sat Nov 30 23:00:00 EST 1963
· Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed.
·
OSTI ID:4161323
TUNGSTEN ABUNDANCES IN METEORITIC AND TERRESTRIAL MATERIALS
Journal Article
·
Mon Oct 01 00:00:00 EDT 1962
· Geochimica et Cosmochimica Acta (England)
·
OSTI ID:4771017