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A Sprectrochemical Method for the Determination of Selenium

Description: A report about selenium which can be determined in pyrite, chalcocite, and marcasite by a spectrochemical method that is simple and rapid, and that requires no complicated arrangement of spectrographic equipment, or chemical pretreatment of samples.
Date: June 1957
Creator: Waring, Claude L.; Worthing, Helen & Hazel, Katherine V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Spectrographic Method for Determining Trace Amounts of Lead in Zirconium and Other Minerals

Description: A report about spectrographic determination of lead in zircon and in some other minerals has been made by the U. S. Geological Survey to provide data in a study of the age of the rocks that contained these particular minerals. Overall, standard spectrographic procedures were applied, including the split-filter method for calibrating the photographic emulsion.
Date: March 1952
Creator: Waring, C. L. & Worthing, Helen
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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