Measurement equations for the determination of the Si molar mass by isotope dilution mass spectrometry

A new method applying isotope dilution mass spectrometry to determine the molar mass of a silicon sample, highly enriched with respect to 28Si, has been proposed recently. This paper describes a different way of calculating the molar mass by solving an equation linking the measurement results to the...

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Bibliographic Details
Published in:Metrologia 2010-08, Vol.47 (4), p.460-460
Main Authors: Mana, G, Rienitz, O, Pramann, A
Format: Article
Language:English
Subjects:
Equivalence
Isotopes
Joining
Linking
Mass spectrometry
Mathematical analysis
Mathematical models
Measurement techniques
Metrology
Silicon
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Summary:A new method applying isotope dilution mass spectrometry to determine the molar mass of a silicon sample, highly enriched with respect to 28Si, has been proposed recently. This paper describes a different way of calculating the molar mass by solving an equation linking the measurement results to the ratio between the amount-of-substance fractions of 28Si and 30Si in the sample. The mathematical model and the final measurement equation are much more straightforward than those previously reported, though fully equivalent.
ISSN:0026-1394
1681-7575
DOI:10.1088/0026-1394/47/4/012