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Trivalent chromium interacts directly with acetylated lysine. [PDF]
J Trace Elem Med BiolWise RM +6 more
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2022
Studies of Sr isotopic composition of thousands of samples of marine sediments and fossils have yielded a curve of 87Sr/86Sr versus age for seawater Sr that extends back to 1 billion years. The ratio has fluctuated with large amplitude during this time period, and because the ratio is always uniform in the oceans globally at any one time, it is useful ...
B. Lynn Ingram, Donald J. DePaolo
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Studies of Sr isotopic composition of thousands of samples of marine sediments and fossils have yielded a curve of 87Sr/86Sr versus age for seawater Sr that extends back to 1 billion years. The ratio has fluctuated with large amplitude during this time period, and because the ratio is always uniform in the oceans globally at any one time, it is useful ...
B. Lynn Ingram, Donald J. DePaolo
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New insights into the Sr isotope budget from stable-Sr isotope fractionation in gypsum
2023The geochemical cycle of strontium (Sr) is closely tied to the long-term inorganic cycle of carbon since the budgets of both elements are controlled by similar natural processes such as volcanism, continental weathering, and carbonates precipitation.
Yana Kirichenko +3 more
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Isotope shift of a series of Sr isotopes
Zeitschrift für Physik D Atoms, Molecules and Clusters, 1986We give data of the isotope shift for the strontium isotopes from A=80 to A=90. They are found to be inconsistent with data from another optical transition. Possible reasons for the discrepancy are discussed.
Anselment, M. +6 more
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Journal of Agricultural and Food Chemistry, 2018
The 87Sr/86Sr ratio of a produce is generally linked with the soil geological features of the growing areas. This study aimed at assessing to which extent the addition of external Sr by agricultural practices, like irrigation and mineral nutrient supply, influences this relationship.
Agnese Aguzzoni +5 more
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The 87Sr/86Sr ratio of a produce is generally linked with the soil geological features of the growing areas. This study aimed at assessing to which extent the addition of external Sr by agricultural practices, like irrigation and mineral nutrient supply, influences this relationship.
Agnese Aguzzoni +5 more
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Proton transfer reactions on Sr isotopes
Physical Review C, 1976We have investigated the proton transfer reactions $^{86}\mathrm{Sr}(d,n)^{87}\mathrm{Y}$, $^{87}\mathrm{Sr}(d,n)^{88}\mathrm{Y}$, and $^{88}\mathrm{Sr}(d,n)^{89}\mathrm{Y}$ at 12 MeV incident deuteron energy. Spectroscopic factors are extracted from a distorted wave Born approximation analysis and compared to the spectroscopic factors extracted from ...
J. L. Horton, C. E. Hollandsworth
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Nuclear structure of Sr, Zr, and Mo isotopes
Physical Review C, 1985The nuclear structure calculations for strontium, zirconium, and molybdenum isotopes are performed in a large configuration space by employing a quadrupole-plus-pairing-interaction Hamiltonian. The possible factors responsible for the sudden onset of deformation at N = 60 in these nuclei are pointed out from the systematics of the occupancies of the ...
, Kumar, , Gunye
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Proton capture cross section of Sr isotopes
Nuclear Physics A, 2001The (p,gamma) cross section of Sr-84,Sr-86,Sr-87 isotopes has been measured using activation technique in the proton energy range between 1.5 and 3 MeV. These reactions are relevant to the p-process of stellar nucleosynthesis and in addition, the reaction cross sections in the mass region up to 100 are also important concerning the rp-process ...
Gyurky, G. +3 more
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Precise determination of triple Sr isotopes (δ⁸⁷Sr and δ⁸⁸Sr) using MC-ICP-MS.
Talanta, 2012The non-traditional stable strontium (Sr) isotopes have received increasing attention recently as new geochemical tracers for studying Sr isotopic fractionation and source identification. This has been attributed to the advancement in multiple-collector inductively coupled plasma mass spectrometry (MC-ICP-MS), allows to determine precisely and ...
Hou-Chun, Liu +3 more
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Stratigraphy and Geological Correlation, 2012
We studied the Sr isotope composition of shells of modern shallow-water mollusks and coral fragments. Twenty five of the studied samples were collected in beach zones of open oceans and marginal seas; twelve and eight additional samples are from saline and freshened inland seas respectively. The 87Sr/86Sr ratio in samples from the Atlantic, Indian, and
A. B. Kuznetsov +2 more
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We studied the Sr isotope composition of shells of modern shallow-water mollusks and coral fragments. Twenty five of the studied samples were collected in beach zones of open oceans and marginal seas; twelve and eight additional samples are from saline and freshened inland seas respectively. The 87Sr/86Sr ratio in samples from the Atlantic, Indian, and
A. B. Kuznetsov +2 more
openaire +1 more source