SEDL / STP / STP1344-EB / STP15727S

Determination of Technetium-99, Neptunium-237 and Isotopes of Thorium in Uranyl Nitrate Solutions From a Reprocessing Plant, Using Double-Focusing ICP-MS

Mitterrand, B
COGEMA Etablissement de La Hague Laboratory Division, Beaumont Hague,

Leprovost, P
COGEMA Etablissement de La Hague Laboratory Division, Beaumont Hague,

Delaunay, J
COGEMA Etablissement de La Hague Laboratory Division, Beaumont Hague,

Vian, AM
COGEMA Etablissement de La Hague Laboratory Division, Beaumont Hague,

Pages: 12    Published: Jan 1998

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Abstract

The determination of some radionuclides in uranyl nitrate solutions from a reprocessing plant through chemical or radiochemical methods may be tedious, with poor precision. Quadrupole ICP-MS and, more recently, double-focusing ICP-MS, with high resolution capabilities, have proved to be very efficient tools for such determinations. These improvements will be illustrated by the examples of Technetium-99, Neptunium-237 and Thorium.