Molybdenum Content of 16 U.S. Geological Survey Standard Rocks |
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Authors: | Philip J ARUSCAVAGE Esma Y CAMPBELL |
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Institution: | U.S. Geological Survey, Reston, VA 22092, USA |
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Abstract: | 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. |
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