Uncertainty evaluation in reference material characterization by double isotope dilution inductively coupled plasma mass spectrometry (ID-ICP-MS)
- Korea Research Institute of Standards and Science (KRISS), Daejeon (Korea, Republic of)
Double isotope dilution inductively coupled plasma mass spectrometry (ID-ICP-MS) is one of the most important measurement methods in the establishment of measurement standards for inorganic analysis. However, there is still no good consensus on approaches for uncertainty evaluation in double ID-ICP-MS. Particularly, approaches to treating the instrumental isotopic fractionation (IIF) phenomenon and correlation between uncertainty sources are diverse and often unclear in the literature. Here, an approach for uncertainty evaluation in double ID-ICP-MS measurements is described. Using three certified reference materials (CRMs), it is shown that the IIF effects cancel out and should not be included in the uncertainty budget. Further, a consistent way of considering correlated sources of uncertainty to prevent double counting of uncertainties is described in detail along with an example of measuring the mass fraction of magnesium in an oyster powder CRM.
- Research Organization:
- USDOE Office of Science (SC), Office of Isotope R&D and Production (IRP)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 2424950
- Journal Information:
- Metrologia, Journal Name: Metrologia Journal Issue: 6 Vol. 59; ISSN 0026-1394
- Publisher:
- IOP PublishingCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Assessment of Low-Level Pu Isotope Ratio Measurements Using Multicollector Inductively Coupled Plasma Mass Spectrometry (MC-ICP-MS/MS) Equipped with a Pre-Mass Filter
Isotopic ratio measurements with ICP-MS
Certification of Uranium Isotope Amount Ratios in a Suite of Uranium Ore Concentrate Certified Reference Materials
Journal Article
·
Thu Sep 11 20:00:00 EDT 2025
· Applied Spectroscopy Practica
·
OSTI ID:3002509
Isotopic ratio measurements with ICP-MS
Conference
·
Tue Jun 03 00:00:00 EDT 1986
·
OSTI ID:5752461
Certification of Uranium Isotope Amount Ratios in a Suite of Uranium Ore Concentrate Certified Reference Materials
Journal Article
·
Sat Nov 06 20:00:00 EDT 2021
· Geostandards and Geoanalytical Research
·
OSTI ID:1897425