S. V. DamlePhysics Dept., Univ. of New Hamsphire, Durham, USAKluwer Academic PublishersAstrophysics and Space ScienceWebber, Lezniak, Kish, et Damle. The Relative Abundance of the Isotopes of Li, Be and B and the Age of Cosmic Rays. Ap&SS 24, 17-29 (1973)....
Studies of the three oxygen isotopes in chondrite meteorites demonstrate that diverse O reservoirs (characterized by their 17O values) were present in the ... Wasson,John T. - 《Reviews of Geophysics》 被引量: 105发表: 2000年 The relative isotopic abundance of K40 in terrestrial and meteoritic...
•Amachinecalledamassspectrometercanquicklydeterminewhichisotopesarepresentandtherelativequantityofeach.•Wecanthensimplycalculateaweightedaverage(link)fromtheresults.•Beforewetackleafewofthoselet’scalculatesomeweightedaveragesofbiggerthings!Whatisthemeanmassofafootballinthetub?•Beforeyoubeginalwaysmakearough...
Relative abundance determination for more than two isotopes of an elementdoi:10.1016/S0020-1693(00)84770-2William D. Hill Jr.Inorganica Chimica Acta
Poschenrieder WP, Herzog RF, Barrington AE (1965) The relative abundance of the lithium isotopes in the Holbrook meteorite. Geochim Cosmochim Acta 29:1193-1195Poschenrieder WP, Herzog RF, Barrington AE (1965) The relative abundance of the lithium isotopes in the Holbrook meteorite. Geochim ...
isotope relative abundanceprimary cosmic rays/ A9440 Cosmic raysMass measurements have been performed on stopping cosmic ray carbon nuclei in a nuclear emulsion stack, which was exposed to the primary radiation in a high altitude balloon flight. The mass determinations are based on measurements of ...
E. 1952. Variations in the relative abundance of the carbon isotopes in plants. Geochim. Cosmochim. Acta 2: 243-254.Wickman, F. E., Variations in the relative abundance of the carbon isotopes in plants, Geochim. Cosmo- chim. Acta, 2, 243-254 (1952)...
Li X, Snyder MP. Can heavy isotopes increase lifespan? Studies of relative abundance in various organisms reveal chemical perspectives on aging. BioEssays. 2016; 38:1093- 101. https://doi.org/10.1002/bies.201600040.Li X, Snyder MP. Can heavy isotopes increase lifespan? Studies of relative ...
Precision of the hyperfine structure of the transitions corresponding to M = 4 of the cubic field paramagnetic resonance spectrum of gadolinium in single crystals of thorium oxide yields the following values: Isotopic abundance: Even isotopes -69.45%; Gd-155 - 15.05 +0.2%; Gd-157 - 15.5 ±0.2...
List of Stable Isotopes and their Relative Abundance in Nature - ScienceDirectELSEVIERHandbook of Stable Isotope Analytical Techniques