scholarly journals The Absolute Isotopic Abundance and Atomic Weight of a Reference Sample of Silver

1982 ◽  
Vol 87 (1) ◽  
pp. 9 ◽  
Author(s):  
L.J. Powell ◽  
T.J. Murphy ◽  
J.W. Gramlich
Keyword(s):  
Reference Sample ◽  
Atomic Weight ◽  
Isotopic Abundance ◽  
The Absolute

A study of the isotopic abundance of boron from various sources

1968 ◽  
Vol 5 (4) ◽  
pp. 921-927 ◽  
Author(s):  
E. K. Agyei ◽  
C. C. McMullen
Keyword(s):  
Boric Acid ◽  
Atomic Weight ◽  
Igneous Rocks ◽  
Tokyo Bay ◽  
Standard Errors ◽  
Isotopic Ratios ◽  
Isotopic Abundance ◽  
A Value ◽  
The Mean ◽  
The Absolute

The absolute ratio of 11B/10B has been determined for boron from different terrestrial sources with a precision of 0.2% (two standard errors) and a reproducibility of 0.2% (half-range). Values fall in the range 4.108 to 3.987 (i.e. 3% variation) and give a corresponding range in the boron atomic weight of 10.814 to 10.810 (0.04% variation). The absolute ratios are 7% lower than those reported by early workers, but are in accord with the results of recent investigations. Igneous rocks and boric acid are found to have high isotopic ratios, whereas Tokyo Bay water possesses a value for 11B/10B near the mean.

scholarly journals Absolute isotopic abundance and the atomic weight of a reference sample of thallium

1980 ◽  
Vol 85 (1) ◽  
pp. 1 ◽  
Author(s):  
L.P. Dunstan ◽  
J.W. Gramlich ◽  
I.L. Barnes ◽  
W.C. Purdy
Keyword(s):  
Reference Sample ◽  
Atomic Weight ◽  
Isotopic Abundance

scholarly journals Absolute isotopic abundance ratios and the atomic weight of a reference sample of chromium

1966 ◽  
Vol 70A (2) ◽  
pp. 193 ◽  
Author(s):  
William R. Shields ◽  
Thomas J. Murphy ◽  
Edward J. Catanzaro ◽  
Ernest L. Garner
Keyword(s):  
Reference Sample ◽  
Atomic Weight ◽  
Isotopic Abundance
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