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ISO 10981:1993

Determination of uranium in reprocessing plants dissolver solution — Liquid chromatography method

95.99 Withdrawal of Standard   Jun 23, 2004

General information

95.99     Jun 23, 2004

ISO

ISO/TC 85/SC 5

International Standard

27.120.30  

Scope

The principle of the method specified is diluting the sample in aqueous ascorbic acid solution until the amount of free acid of the nitric solution injected into the chromatograph is lower than 0,1 mol/l in HNO3, performing ion-pair partition chromatography, detecting the elution of uranium by UV spectrophotometry at a wavelength of 254 nm, measuring the peak area, obtaining the result by comparison with the measurements of standards. Applies to uranium concentration between 0,1 g/l and 500 g/l. Specifies how interference by nitrite and plutonium ions is prevented.

Life cycle

NOW

WITHDRAWN
ISO 10981:1993
95.99 Withdrawal of Standard
Jun 23, 2004

REVISED BY

PUBLISHED
ISO 10981:2004

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