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Subject Keyword ENGINEERING AND EQUIPMENT ♦ MOLYBDENUM ♦ ORES ♦ ORGANIC COMPOUNDS ♦ SPECTROSCOPY ♦ TUNGSTEN
Abstract A method is suggested for the quantitative determination of small concentrations of molybdenum and tungsten in various rocks. When the concentrations of these elements are greater than 10/sup -4/%, the analysis of rocks is carried out by the direct spectrographic method. The analysis of rocks containing less than 10/sup -4/% of molybdenum and tungsten is performed with the preliminary chemical enrichment by means of organic co-precipitants. The concentrates obtained are analyzed by the spectrographic method. The sensitivity of the chemico-spectrographic method developed for the determination of molybdenum and tungsten appears to be equal to 2 x 10/sup -6/% and 3 x 10/sup -5/ %, correspondingly. (auth)
Educational Use Research
Learning Resource Type Article
Publisher Date 1960-07-01
Journal Zhur. Anal. Khim.
Volume Number 15
Organization Vernadskii Inst. of Geochemistry and Analytical Chemistry, Academy of Sciences, Moscow


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