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Published September 1, 1989 | public
Journal Article

Determination of the concentration and stable isotopic composition of oxygen in organic matter containing carbon, hydrogen, oxygen, nitrogen, and sulfur

Abstract

A method for the quantitative production of carbon dioxide from oxygen in organic matter consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur has been developed. Manometric and mass spectrometric analysis of the CO_2 permit direct determination of the concentration and isotopic composition of oxygen in CHONS compounds with accuracy comparable to that previously achievable for CHO and CHON compounds. Samples containing as little as 187 µmol of oxygen with S/O ratios as high as 0.16 have been analyzed by using this method.

Additional Information

© 1989 American Chemical Society. Received for review February 21, 1989. Accepted May 24, 1989. This work was supported by National Science Foundation Grants EAR 85-04096, BNS 84-18280, and DMB 84-05003. This is contribution number 4706 from the Division of Geological and Planetary Sciences at Caltech.

Additional details

Created:
August 19, 2023
Modified:
October 24, 2023