Stable strontium
نویسندگان
چکیده
منابع مشابه
Strontium concentration, radiogenic (Sr/Sr) and stable (δSr) strontium isotope systematics in a controlled feeding study
Transhumance and palaeodiet are two central themes in archaeology and using chemical analysis of bones and teeth to reconstruct trends and patterns in diet and mobility has become a cornerstone of bioarchaeology. This study has investigated strontium concentration ([Sr]), radiogenic (Sr/Sr) and stable strontium (δSr) isotope systematics in a controlled feeding experiment on domestic pigs design...
متن کاملSimple test of intestinal calcium absorption measured by stable strontium.
A clinical test of intestinal calcium absorption has been developed using non-radioactive stable strontium as a calcium tracer. In nine elderly subjects there was a close correlation between the fractional absorption of strontium and radioactive calcium (45Ca) during a five hour period after the simultaneous oral administration of the two tracers. Comparable precision was achieved with each tra...
متن کاملHigh-Spin States and Level Structure in Stable Nucleus Strontium-84
High-spin states of (84)Sr are populated through the reaction (70)Zn ((18)O, 4n) (84)Sr at the beam energy of 75 MeV. The measurements of excitation functions, γ-γ coincidences, directional correlations of oriented states (DCO) ratios and γ-transition intensities are performed using eight anticompton HPGe detectors and one planar HPGe detector. Based on the experimental results, we establish a ...
متن کاملEffect of low doses of stable strontium on bone metabolism in rats.
The effects of low doses of oral stable strontium (0.19-0.40% of strontium chloride) on mineral and bone metabolism were examined in normal rats using biochemical and histomorphometrical methods. The strontium levels in serum and bone rose according to the intake of the element. Oral strontium supplementation did not produce deleterious effects on body growth or on mineral homeostasis except a ...
متن کاملThe stable isotope ratios of marijuana. II. Strontium isotopes relate to geographic origin.
Effectively addressing marijuana trade is aided by understanding marijuana geographic sources. We analyzed the (87)Sr/(86)Sr of marijuana samples grown in 79 counties across the United States to determine if a primary geologic signal is retained in marijuana, which could therefore be useful for geographic sourcing. The marijuana results were compared with modeled bedrock (87)Sr/(86)Sr values ba...
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ژورنال
عنوان ژورنال: Nature Catalysis
سال: 2019
ISSN: 2520-1158
DOI: 10.1038/s41929-019-0261-3