Abstract
Major levels of boron in borosilicate glasses have been determined nondestructively by neutron activation analysis. In contrast to chemical methods for determining boron as a major component, the described nuclear method has few interferences and does not require chemical separation of boron prior to its quantitation. The effects of neutron self-shielding by boron (1 to 8% by weight) are examined, minimized by dilution of powdered samples with high purity graphite, and circumvented by comparative analyses. Results of the analysis of a series of glasses with increasing boron composition are 1.150±.005% and 7.766±.035% for the low and high members of the series. Accuracy of these results depends upon comparative analyses with the certified Standard Reference Material, SRM 93a (3.89±0.02% B). Once analyzed, the glasses are useful as secondary standards for alpha track counting, and also ion and electron microprobe analyses of glasses.
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Riley, J.E., Lindstrom, R.M. Determination of boron in borosilicate glasses by neutron capture prompt gamma-ray activation analysis. Journal of Radioanalytical and Nuclear Chemistry, Articles 109, 109–115 (1987). https://doi.org/10.1007/BF02117528
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DOI: https://doi.org/10.1007/BF02117528