carbon 12

Also found in: Dictionary, Encyclopedia, Wikipedia.

car·bon 12 (12C),

The standard of atomic mass, 98.90% of natural carbon.
References in periodicals archive ?
Because methane made with carbon 12 is slightly lighter, the chemical reactions that convert it to more complex hydrocarbons happen a bit faster.
F R I D AY BRECON: Theatr Brycheiniog (01874 611622), Welsh National Opera presents Carbon 12.
She went down the pits of the famous Tower Colliery, in Hirwaun, south Wales, and became embroiled in the life of the miners and their families to ensure her work, Carbon 12, was a perfect reflection of that close-knit community.
WELSH National Opera present a double bill at Wales Millennium Centre tonight with a premiere of mini-opera Carbon 12 tonight, preceded by Prokofiev's Alexander Nevsky.
There will also be An Evening of Rossini on June 18 and a double-bill of Prokofiev's Alexander Nevsky and Carbon 12, a choral celebration of South Wales's history and culture, on June 19.
This form, called carbon 12, accounts for 99 percent of all carbon (carbon 13 and 14 account for the rest).
Price and ARS chemist Suzie Sheng are using mass-spectrometry analysis to compare the ratio of carbon 12 and 13 isotopes of sugars that have been metabolized and secreted into saliva.
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.
UAE based Egyptian artists Hazem Mahdy unveils his first solo exhibition at Carbon 12 gallery at Al Serkal Avenue in Dubai.