Isotopic analyses based on the mass spectrum of carbon dioxide.

  title={Isotopic analyses based on the mass spectrum of carbon dioxide.},
  author={J W Santrock and S A Studley and John M. Hayes},
  journal={Analytical chemistry},
  volume={57 7},
Measurements of carbon and oxygen isotopic abundances are commonly based on the mass spectrum of carbon dioxide, but analysis of that spectrum is not trivial because three isotope ratios (17O/16O, 18O/16O, and 13C/12C) must be determined from only two readily observable ion-current ratios (45/44 and 46/44). Here, approaches to the problem are reassessed in the light of new information regarding the distribution of oxygen isotopes in natural samples. It is shown that methods of calculation… CONTINUE READING

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