Isotopes Matter
نویسندگان
چکیده
منابع مشابه
Nuclear matter radii of neutron-deficient Kr isotopes
T. Yamaguchi,1 T. Suzuki,1 T. Ohnishi,2 F. Becker,3 M. Fukuda,4 H. Geissel,3 M. Hosoi,1 R. Janik,5 K. Kimura,6 T. Kuboki,1 S. Mandel,3 M. Matsuo,7 G. Münzenberg,3 S. Nakajima,1 T. Ohtsubo,7 A. Ozawa,8 A. Prochazka,5 M. Shindo,3,9 B. Sitár,5 P. Strmeň,5 T. Suda,2 K. Sümmerer,3 K. Sugawara,1 I. Szarka,5 M. Takechi,4 A. Takisawa,7 K. Tanaka,2 and M. Yamagami2 1Department of Physics, Saitama Univer...
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A short review of the existing analytical procedures for determination of Po-210, showing their advantages and disadvantages, is presented. The criteria for selecting the proper method, according to the scope and type of matrix in study are summarised. The rapid method which is described here consists of total digestion, auto deposition and measurement by means of alpha spectrometry. The classi...
متن کاملGoethite, calcite, and organic matter from Permian and Triassic soils: Carbon isotopes and CO2 concentrations
Pedogenic goethites in each of two Early Permian paleosols appear to record mixing of two isotopically distinct CO2 components—atmospheric CO2 and CO2 from in situ oxidation of organic matter. The C values measured for the Fe(CO3)OH component in solid solution in these Permian goethites are 13.5‰ for the Lower Leonardian ( 283 Ma BP) paleosol (MCGoeth) and 13.9‰ for the Upper Leonardian ( 270 M...
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Stable carbon isotope ratios in marine aerosol collected over the Southern Indian Ocean revealed δ13C values ranging from -20.0‰ to -28.2‰. The isotope ratios exhibited a strong correlation with the fractional organic matter (OM) enrichment in sea spray aerosol. The base-level isotope ratio of -20.0‰ is characteristic of an aged Dissolved Organic Matter (DOM) pool contributing a relatively homo...
متن کاملMarine phosphate oxygen isotopes and organic matter remineralization in the oceans.
We show that the isotopic composition of oxygen (delta18O) in dissolved inorganic phosphate (Pi) reveals the balance between Pi transport and biological turnover rates in marine ecosystems. Our delta18Op of Pi (delta18Op) measurements herein indicate the importance of cell lysis in the regeneration of Pi in the euphotic zone. Depth profiles of the delta18Op in the Atlantic and Pacific Oceans ar...
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ژورنال
عنوان ژورنال: Chemistry International
سال: 2019
ISSN: 1365-2192,0193-6484
DOI: 10.1515/ci-2019-0107