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Carbon Isotopes

Stable Carbon Isotopes - C Isotopes
Nominal mass Accurate
% Natural abundance Chemical form Enrichment available %

12 C 12.000000000 98.93 Metal 99+

13 C 13.003354826 (17) 1.07 (8) Metal, BaC03 52 - 67+
Carbon Isotopes and mainly C-13 is used extensively in many different applications. C-13 is used for instance in organic chemistry research, studies into molecular structures, metabolism, food labeling, air pollution and climate change. C-13 is also used in breath tests to determine the presence of the helicobacter pylori bacteria which causes stomach ulcer. C-13 can also be used for the production of the radioisotope N-13 which is a PET isotope. The C-12 atom has been given the atomic weight of exactly 12.000000000 and is used as the basis upon which the atomic weight of other isotopes is determined.
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