منابع مشابه
Magnesium isotope ratios in Hyades stars
Using classical model atmospheres and an LTE analysis, Mg isotope ratios Mg:Mg:Mg are measured in 32 Hyades dwarfs covering 4000K ≤ Teff ≤ 5000K. We find no significant trend in any isotope ratio versus Teff and the mean isotope ratio is in excellent agreement with the solar value. We determine stellar parameters and Fe abundances for 56 Hyades dwarfs covering 4000K ≤ Teff ≤ 6200K. For stars wa...
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The question as to what constitutes a fully calibrated isotope amount ratio measurement still remains a topic of active research. For years, the definitive calibration approach has been by means of synthetic mixtures of highly enriched isotopes with known chemical purity to give gravimetrically defined ratios. This article outlines the core concepts and assumptions of this method and illustrate...
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متن کاملHydrogen Isotope Ratios of Individual Organic Compounds
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ژورنال
عنوان ژورنال: J. Anal. At. Spectrom.
سال: 2013
ISSN: 0267-9477,1364-5544
DOI: 10.1039/c2ja10205f