Ví dụ về việc sử dụng Stable isotope trong Tiếng anh và bản dịch của chúng sang Tiếng việt
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However, technetium does not even have one stable isotope.
Deuterium is a stable isotope, so it is not radioactive.
However, some even neutron numbers also have only one stable isotope;
Stable isotope forms of neon are produced within stars.
When there is only one parabola,there can be only one stable isotope lying on that parabola.
In addition, stable isotope compositions(2H, 18O) of the water samples will also be analyzed and evaluated.
Seaborgium is a synthetic element whose most stable isotope 271Sg has a half-life of 1.9 minutes.
The most stable isotope discovered to date is 285Cn with a half-life of≈30 s, although evidence exists that 285Cn may have a nuclear isomer with a much longer half-life of 8.9 min.
As a side effect of the process,some carbon nuclei fuse with additional helium to produce a stable isotope of oxygen and energy.
One important application is in"Stable isotope labeling with amino acids in cell culture"(SILAC).
Oganessian is one of only two periodical elements to be named after a living person, the other being Seaborgium, which is another synthetic element,known for being the most stable isotope.
Uranium-238 is the most stable isotope of uranium, with a half-life of about 4.468× 109 years, roughly the age of the Earth.
Hope Jahren is an American geochemist and geobiologist at the University of Oslo,known for her work using stable isotope analysis to analyze fossil forests dating to the Eocene.
Similarly, 219Rn is derived from the most stable isotope of actinium(227Ac)- named"actinon"- and is an alpha emitter with a half-life of 3.96 seconds.
Larger state labs, such as the Chinese Academy of Forestry lab in Beijing,have begun trying to use DNA analysis, stable isotope identification, and gas chromatography-mass spectrometry.
Fluorine has only a single naturally occurring stable isotope, so isotopologues of UF6 differ in their molecular weight based solely on the uranium isotope present.
In addition to observational studies of animal behavior, and quantification of animal stomach contents,trophic level can be quantified through stable isotope analysis of animal tissues such as muscle, skin, hair, bone collagen.
The primary decay mode before the most abundant stable isotope, 175Lu, is electron capture(with some alpha and positron emission), and the primary mode after is beta emission.
The study results of the IGPVNproject in Soc Trang Province based on the stable isotope composition and the absolute age of groundwater presented by Dr.
Deuterium oxide, a stable isotope of hydrogen, can be used to measure lean or fat mass accumulation, to track synthesis of protein and fatty acids and study the function of individual bacterial cells.
The first information on thebiosynthesis of the rifamycins came from studies using the stable isotope Carbon-13 and NMR spectroscopy to establish the origin of the carbon skeleton.
Stable isotope studies of oxygen and hydrogen in igneous rocks indicate that the oxygen-18, δ18O, content is approximately 6- 8‰ higher than standard mean ocean water(SMOW) while the deuterium, δ2H, content is 40 to 80‰ lower than SMOW.
Deuterium Deuterium, also called heavy hydrogen, is a stable isotope of hydrogen with a natural abundance in the oceans of Earth of approximately one atom in 6500 of hydrogen.
Development of accurate,field-based non-invasive methods to diagnose the condition is urgently needed and stable isotope techniques offer the advantage that they can be used to assess multiple aspects of EED.”.
In addition to the first campaign, not only the stable isotope compositions(2H, 18O) of the water samples will be analysed, but also 13C and 14C isotope determination will be used for groundwater dating.
John Arnold Cranston(working with Frederick Soddy and Ada Hitchins)is also credited with discovering the most stable isotope in 1915, but delayed his announcement due to being called up for service in the First World War.
Isotopically-labeled urea(carbon 14- radioactive, or carbon 13- stable isotope) is used in the Urea breath test, which is used to detect the presence of Helicobacter pylori(H. pylori, a bacterium) in the stomach and duodenum of humans.
After his first methodology met with mixed results, he decided to send fivesamples of dental calculus to Poulson at the University's Stable Isotope Lab, in the off chance they might contain enough carbon and nitrogen to allow them to estimate stable isotope ratios.
It is placed as the heaviest member of group 15(VA)although a sufficiently stable isotope is not known at this time that would allow chemical experiments to confirm its position.
For isotopes with atomic massunit values less than that of the most abundant stable isotope, 106Pd, the primary decay mode is electron capture with the primary decay product being rhodium.