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Central European Geology
Authors: Attila Demény, Géza Nagy, Bernadett Bajnóczi, Tibor Németh, József Garai, Vadym Drozd, and Ernst Hegner

.V. Kaminskii L.A. Kodina 1985 New data on isotopic composition of carbon in carbonado Geokhimiya 5 723

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References Alt , J.C. 2003 : Stable isotopic composition of upper oceanic crust formed at a fast spreading ridge, ODP Site 801 . — Geochemistry Geophysics Geosystems, 4 , Art

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Journal of Radioanalytical and Nuclear Chemistry
Authors: K. Ramakumar, A. Parab, P. Khodade, A. Almaula, S. Chitambar, and H. Jain

Abstract  

Investigations were carried out on the determination of isotopic composition of boron using Cs2BO 2 + ion and thermal ionisation mass spectrometry. The results show distinct advantage over the normally used Na2BO 2 + ion.

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S. Halas 2012 Stable isotope composition of subfossil Cerastoderma glaucum shells from the Szczecin Bay brackish deposits and its palaeogeographical implications (South Baltic Coast, Poland

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Central European Geology
Authors: Attila Demény, Gabriella Schöll-Barna, Pál Sümegi, Péter Sipos, István Fórizs, Brigitta Réka Balázs, Bernadett Bajnóczi, and Gordon Cook

K. Gulyás 2012 Mid-Holocene climate conditions and moisture source variations based on stable H, C and O isotope compositions of speleothems in Hungary Quaternary

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Abstract  

Plutonium isotopic composition and the activities of non-separate transuranic elements:237Np and241Am, are determined in the presence of long lived-fission products traces, by gamma-spectrometric measurements with a Ge-ultrapure detector. The quantitative values from the gamma-spectra analysis, are presented comparatively to mass-spectrometric data.

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Abstract  

The International Atomic Energy Agency (IAEA), in cooperation with World Meteorological Organization (WMO) initiated in 1960 a world-wide survey of the isotope composition of monthly precipitation. The paper reviews the global distribution patterns of tritium and stable isotopes in precipitation and their relation to meteorological and climatic variables.

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Abstract  

A rapid non-destructive neutron activation technique for the determination of the238U/235U ratio is described. Reagent grade uranium salts from commercial sources have a widely variable238U/235U ratio. The isotopic composition of uranium found in such salts is quite different from the natural value. This difference is largely due to the use of by-product uranium depleted in235U.

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Abstract  

This paper considers the variable isotopic composition of lead as a possible source of systematic errors in proton activation analysis. The importance of this source of error was evaluated for environmental and geological samples. As proton activation analysis is frequently used for the certification of lead, the error was determined for three sediment reference materials. Inductively coupled plasma-mass spectrometry was used for the determination of the isotopic composition of lead. The systematic error amounted for the sediments to approximately 1%.

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Abstract  

The isotopic composition of lithium in seawater has been determined by thermal ionization mass spectrometry (TIMS) based on the use of lithium hydroxide as the ion source. Isotopic measurements in a reference material supplied by IAEA (L-SVEC Li2CO3) were made to check the reproducibility of the method and 6Li indicates mobilization of light isotope of lithium form the sediment.

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