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

被引：27
|
作者：
Mana, G. [1 ]
Rienitz, O. [2 ]
Pramann, A. [2 ]
机构：
[1] INRIM Ist Nazl Ric Metrolog, I-10135 Turin, Italy
[2] Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany
来源：
METROLOGIA | 2010年 / 47卷 / 04期
关键词：
Isotopes;
D O I：
10.1088/0026-1394/47/4/012
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A new method applying isotope dilution mass spectrometry to determine the molar mass of a silicon sample, highly enriched with respect to (28)Si, 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 (28)Si and (30)Si in the sample. The mathematical model and the final measurement equation are much more straightforward than those previously reported, though fully equivalent.
引用
收藏
页码：460 / 463
页数：4
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