Determination of sub microgram amounts of selenium in rocks by atomic-absorption spectroscopy.
Atomic-absorption spectroscopy was used to determine trace amounts of selenium accurately in U.S. Geological Survey standard rocks, GSP-1, W-1 and BCR-1. The results obtained were compared with those obtained by neutron-activation analysis and excellent agreement was found; in addition, the selenium:sulphur ratio was calculated and agreed with results obtained by other workers.
Golembeski
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Department of Chemistry Lowell Technological Institute Lowell, Massachusetts, U.S.A. New England Nuclear Corp. Billerica.