Preparation and Verification of QUAD Uranium Isotopic Reference Material IRMM-3100a
The isotopic reference material IRMM-3100a was prepared by gravimetrical dilution of IRMM-3101. The primary solution IRMM-3101 was designed such that the material consists of equivalent parts of four individual isotopes n(233U)/n(235U)/n(236U)/n(238U) with a ratio of one.
The certified isotope amount ratio for ratio n(233U)/n(236U) has been established by mass metrology and was verified by isotope mass spectrometry. The certified ratios n(234U)/n(236U), n(235U)/n(236U) and n(238U)/n(236U) have been measured by TIMS in multi-dynamic mode and using the n(233U)/n(236U) ratio for internal normalization. The preparation of IRMM-3101 is in full described elsewhere. [1]
The Isotopic Reference Material IRMM-3100a is part of a systematic IRMM programme to supply Isotopic Reference Materials of various isotopes at different concentrations. The Isotopic Reference Material is supplied in a quartz ampoule containing 0.5 mL of a 1 M nitric acid solution.
VERBRUGGEN Andre;
EYKENS Roger;
KEHOE Frances;
KUEHN Heinz;
JAKOBSSON Ulf;
RICHTER Stephan;
AREGBE Yetunde;
2010-11-15
Publications Office of the European Union
JRC61143
978-92-79-17197-0,
1018-5593,
EUR 24559 EN,
OP LA-NA-24559-EN-N,
https://publications.jrc.ec.europa.eu/repository/handle/JRC61143,
10.2787/31471,
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