Reference Materials for Isotopic Composition Used in Implementing Isotope Dilution Mass Spectrometry

2020 ◽  
pp. 237-249
Author(s):  
Olga N. Kremleva ◽  
Tatiana N. Tabatchikova
Keyword(s):  
Mass Spectrometry ◽  
Isotopic Composition ◽  
Reference Materials ◽  
Isotope Dilution ◽  
Isotope Dilution Mass Spectrometry

scholarly journals 30 years of IRMM-1027 reference materials for fissile material accountancy and control: development, production and characterisation

2021 ◽  
Author(s):  
Rožle Jakopič ◽  
Kalman Toth ◽  
Jeroen Bauwens ◽  
Renata Buják ◽  
Carmel Hennessy ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Isotopic Composition ◽  
Reference Materials ◽  
Isotope Dilution ◽  
Organic Substance ◽  
Certified Reference Materials ◽  
Isotope Dilution Mass Spectrometry ◽  
Fissile Material ◽  
High Quality ◽  
And Control

AbstractThe IRMM-1027 Large-sized dried (LSD) spikes are certified reference materials applied to measure the uranium and plutonium content of dissolved fuel solutions using isotope dilution mass spectrometry. High quality starting metals of uranium and plutonium are dissolved to produce a stock solution, which is dispensed into individual vials and dried down. The present spikes are mixtures of typically 50 mg 20% enriched U and 2 mg enriched 239Pu as dried nitrates, conditioned in an organic substance for stability. Each vial of an IRMM-1027 LSD spike comes with certified masses of uranium (235U and 238U) and 239Pu and isotopic composition with associated uncertainty. This article will discuss major developments since the production of the first batch of LSD spikes and will reflect on the current preparation and certification approaches.

Matrix effects in Pb/U measurements during LA-ICP-MS analysis of the mineral apatite

2016 ◽  
Vol 31 (6) ◽  
pp. 1206-1215 ◽  
Author(s):  
Jay Thompson ◽  
Sebastien Meffre ◽  
Roland Maas ◽  
Vadim Kamenetsky ◽  
Maya Kamenetsky ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Reference Materials ◽  
Isotope Dilution ◽  
Matrix Effects ◽  
Primary Standard ◽  
Isotope Dilution Mass Spectrometry ◽  
Ms Analysis ◽  
Icp Ms

U–Pb ages of several apatite reference materials, acquired by LA-ICP-MS over a 3.5 year period using the Otter Lake apatite as a primary standard, show systematic offsets (up to 3%) from reference ages obtained by isotope dilution mass spectrometry.

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