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Molybdenum Content of 16 U.S. Geological Survey Standard Rocks
Author(s) -
ARUSCAVAGE Philip J.,
CAMPBELL Esma Y.
Publication year - 1981
Publication title -
geostandards newsletter
Language(s) - English
Resource type - Journals
eISSN - 1751-908X
pISSN - 0150-5505
DOI - 10.1111/j.1751-908x.1981.tb00323.x
Subject(s) - molybdenum , relative standard deviation , geological survey , reagent , content (measure theory) , mineralogy , analytical chemistry (journal) , zinc , geology , chemistry , environmental chemistry , inorganic chemistry , detection limit , chromatography , mathematics , paleontology , mathematical analysis , organic chemistry
The concentration of molybdenum in 16 U.S. Geological Survey (USGS) standard rocks was determined by a colorimetric procedure using zinc dithiol reagent. The molybdenum content in the rocks was found to range from 0.04 to 37 ppm. The precision of the method is generally better than 10% relative deviation when the molybdenum content is >0.3 ppm. A comparison with values stated in the literature shows that the method is accurate for the range of concentrations determined and the rock types analyzed.