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DEVELOPMENT OF ANALYTICAL TECHNIQUES FOR THE DETERMINATION OF MINUTE QUANTITIES OF SELECTED ELEMENTS IN BERYLLIUM.
BATTELLE MEMORIAL INST COLUMBUS OH
A spark-source mass-spectrographic analytical procedure suitable for the determination of trace impurity elements in high-purity beryllium has been developed. The mass-spectrographicdevelopment work included 1 studies on the effectiveness of several sample cleaning techniques and sample bake treatments prior to the analysis 2 the observation of residual gases given off during the bake and sample excitation cycles 3 efforts to prepare low oxygen standards by use of 17O additions to beryllium 4 investigations on data readout procedures and 5 application of the developed procedures to beryllium materials on which purity information was available. An emission-spectrographic method capable of determining many metallic impurity elements at or near the 1 part per million concentration level has been developed, and a combustion-conductometric method has been developed for the determination of carbon in the range of 1 to 10 parts per million with a blank variance of 1 microgram in respect to the flux. Additional development efforts were directed toward the determination of carbon by combustion methods. Author
Final rept., 20 Jan 64-19 Jan 65,