Statistical Review of Cesium Carbonate Fusion Measurements of Archived Glass Samples from the DWPF Process

摘要

This technical report provides a statistical review of measurements that the Defense Waste Processing Facility (DWPF) Laboratory (Lab) generated by Inductively-Coupled Plasma - Atomic Emission Spectroscopy (ICP-AES) for samples of archived Slurry Mix Evaporator (SME) glass that were prepared using a cesium carbonate fusion dissolution method. Measurements were generated by both of the Lab's ICPs, which are designated as M-13 and M-14. Comparisons between the two ICPs suggest that for the ARG-1 measurements the M-14 provided lower (on average) concentration measurements for about 13 of the 16 elements reported by DWPF with Cr, Mn, Ni, and Zr being statistically lower (at a 5% significance level) for the ARG-1 samples. One of the three exceptions is Li, for which the M-14 yielded (on average) higher concentration measurements than the M-13. For the SME samples, the M-14 and M-13 measurements had statistically different (at the 5% significance level) means for B, Ca, Cr, Cu, Fe, Li, Mg, Mn, Na, Ni, Si, Ti, U, and Zr with the M- 14 being lower than the M-13 for all of these elements except for Li.