Infrared Spectrophotometric Determination of 13C Enrichment

Authors: Tyson, Lesia L.; Vickers, Thomas J.; Mann, Charles K.

Source: Applied Spectroscopy, Volume 38, Issue 5, Pages 619-747 (September/October 1984) , pp. 697-700(4)

Publisher: Society for Applied Spectroscopy

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A study has been made of the feasibility of using the v 3 band of 13CO2 as a basis for measurement of the extent of isotope enrichment in breath tests. Correlation and least-squares treatments were used. Considering the constraints of a small computer, the correlation approach is the more satisfactory. The results indicate that a method that is based on a single measurement at 170 Torr, with a standard curve for quantitation, will, give results that are adequate, considering the natural variation that occurs. Assuming the use of a beam condenser, the amount of sample required is less than that normally taken for this application.

Keywords: 13CO2 determination; Infrared spectroscopy; Isotope enrichment

Document Type: Research Article


Affiliations: Department of Chemistry, Florida State University, Tallahassee, Florida 32306

Publication date: September 1, 1984

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