Open AccessAutomated {sup 99}Tc analysis in AW-101 and AN-107 ``diluted feed'' matrixes
Author(s) -
O. A. Egorov,
D.E. Kurath
Publication year - 2000
Language(s) - English
Resource type - Reports
DOI - 10.2172/752741
Subject(s) - effluent , fraction (chemistry) , column (typography) , radiochemistry , aqueous solution , technetium , chemistry , environmental science , waste management , process engineering , analytical chemistry (journal) , chromatography , nuclear chemistry , engineering , telecommunications , frame (networking)
A process monitor is needed by British Nuclear Fuels Limited, Inc. (BNFL Inc.) to measure total {sup 99}Tc levels in column effluents during technetium removal from the aqueous fraction of the Hanford high-level tank wastes. The monitor must achieve detection limits of 1 x 10{sup {minus}8}Ci/mL (0.6 {micro}g/mL). Measurements must be done in near real time, with an analysis frequency of {approximately}15 min. The monitoring technology must be sufficiently simple and robust for unattended continuous operation in the plant settings