ČSN EN ISO 15366-2

Nuclear fuel technology - Chemical separation and purification of uranium and plutonium in nitric acid solutions for isotopic and isotopic dilution analysis by solvent extraction chromatography - Part 2: Samples containing plutonium and uranium in the nanogram range and below

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Detail information

Designation: ČSN EN ISO 15366-2

Publication date: 01/10/2016

Pages: 24

Country: Czech technical standard

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Anotation

This part of ISO 15366 describes procedures to chemically separate and purify uranium and plutonium in dissolved solutions of irradiated light water reactor fuels and in samples of high active liquid waste of spent fuel reprocessing plants, prior to their isotopic analysis by e.g. mass spectrometric method (see ISO 8299) or alpha spectrometry (see ISO 11483). This part of ISO 15366 describes a slightly different separation technique from ISO 15366 1, based on the same chemistry, using smaller columns, different support material and special purification steps, applicable to samples containing plutonium and uranium amounts in the nanogram range and below. The detection limits were found to be 500 pg plutonium and 500 pg uranium. Annex A describes the preparation of the columns and the column support materials.
In comparison with ISO 15366 1, as uranium and plutonium amounts are lowest, additional purification on an anion exchange resin is performed

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