carbon-12

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carbon-12

[′kär·bən ′twelv]
(nuclear physics)
A stable isotope of carbon with mass number of 12, forming about 98.9% of natural carbon; used as the basis of the newer scale of atomic masses, having an atomic mass of exactly 12u (relative nuclidic mass unit) by definition.
References in periodicals archive ?
Carbon 12 is part of a night also featuring a score by Alexander Nevsky on Thursday with other WNO productions of Aida, Hansel and Gretel and An Evening With Rossini playing at the venue between Tuesday and Saturday.
Artificial norandrosterone contains lower levels of carbon 13 than carbon 12, because it is produced from a plant source with less carbon 13 than normal dietary sources.
Another key assumption is that the only source of carbon 12 in the plant is from the C[O.
As algae and bacteria grow in warm water, they preferentially remove the lighter carbon isotope (carbon 12) from seawater, depleting it of carbon 12 and increasing the relative abundance of carbon 13.
For example, tests will discover whether rocks contain traces of Carbon 12 which is created from biological matter.
The lightest is carbon 12, followed by carbon 1 3 and radioactive carbon 14 (radiocarbon).
Working at the Joint Institute for Nuclear Studies in Dubna, USSR, they irradiated a nuclear emulsion with energetic carbon 12 nuclei.
The BreathID[R] System is a non-radioactive breath test platform capable of analyzing parts-per-million changes in carbon 13 and carbon 12 ratios in a patient's breath for the detection of H.
The latest exhibition at Carbon 12 gallery, Good Face and Incurable Flaws, brings together paintings by two young artists from different parts of the world -Teheran-based Amir Khojasteh, and Philip Mueller from Vienna.
UAE based Egyptian artists Hazem Mahdy unveils his first solo exhibition at Carbon 12 gallery at Al Serkal Avenue in Dubai.
When microbes degrade contaminants, they prefer the lighter isotope carbon 12 over the heavier isotope carbon 13.
Graffiti art, digital media, and choral singing are among the mediums used to draw in a new audience - from travellers to surfers, to a group of women from Merthyr who came together to form a community choir for WNO's recent choral symphony Carbon 12.