Results 31 to 40 of about 105,676 (166)
Frontiers in Microbiology, 2018 The nanoSIMS-based chemical microscopy has been introduced in biology over a decade ago. The spatial distribution of elements and isotopes analyzed by nanoSIMS can be used to reconstruct images of biological samples with a resolution down to tens of ...
Hryhoriy Stryhanyuk +5 more
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Stable carbon isotope ratios of toluene in the boundary layer and the lower free troposphere [PDF]
Atmospheric Chemistry and Physics, 2013 During the field campaign ZEPTER-2 in autumn 2008 whole air samples were collected on board a Zeppelin NT airship in the planetary boundary layer (PBL) and the lower free troposphere (LFT) over south-west Germany using the ZEppelin Based Isotope Sampler (
J. Wintel +5 more
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Frontiers in Earth Science, 2021 Since 1971 water isotope measurements are being conducted by the Climate and Environmental Physics Division at the University of Bern on precipitation, river- and groundwater collected at several places within Switzerland.
Markus C. Leuenberger +2 more
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Online Determination of Boron Isotope Ratio in Boron Trifluoride by Infrared Spectroscopy
Applied Sciences, 2018 Enriched boron-10 and its related compounds have great application prospects, especially in the nuclear industry. The chemical exchange rectification method is one of the most important ways to separate the 10B and 11B isotope.
Weijiang Zhang, Yin Tang, Jiao Xu
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Quantitative Determination of Isotope Ratios from Experimental Isotopic Distributions [PDF]
Analytical Chemistry, 2007 Isotope variability due to natural processes provides important information for studying a variety of complex natural phenomena from the origins of a particular sample to the traces of biochemical reaction mechanisms. These measurements require high-precision determination of isotope ratios of a particular element involved.
Parminder, Kaur, Peter B, O'Connor
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Isotope effects and Alfvén eigenmode stability in JET H, D, T, DT, and He plasmas
Nuclear FusionWhile much about Alfvén eigenmode (AE) stability has been explored in previous and current tokamaks, open questions remain for future burning plasma experiments, especially regarding exact stability threshold conditions and related isotope effects; the ...
R.A. Tinguely +9 more
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Measurement and validation of uranium isotope ratio in uranium ore for isotopic fingerprinting
Radiation Protection and Environment, 2017 Accurate determination of uranium isotope ratio can act as an efficient fingerprint in the nuclear forensics to identify source and intended use of illicit trafficking of uranium material. In this context, a rapid chemical separation technique to isolate
Suchismita Mishra +3 more
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Isotope ratio mass spectrometry application for environmental investigations [PDF]
E3S Web of Conferences, 2019 Stable isotope ratio mass spectrometry (IRMS) is a useful technique with a broad range of applications. Stable isotopes are important indicators of environmental changes (including climate), and can be used to explain the functioning of biogeochemical ...
Simonova Galina, Kalashnikova Daria
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Isotopic Ratios in Comets [PDF]
International Astronomical Union Colloquium, 1991 Abstract.The isotopic abundances depend on the universal evolution of elements and on the individual history of particular objects. Since it is believed that unprocessed material of the solar nebula is preserved in comets, the data concerning the abundance of stable isotopes in these primitive bodies are of some importance in the cosmological context ...
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Effect of the production site on stable isotopes of ethanol in fruit spirits
Talanta Open, 2022 Stable isotope ratio analyzes are powerful analytical methods that can be used to check the authenticity of alcoholic beverages and to detect any adulteration.
Ildikó Gherghely +4 more
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