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Analysis of 13C16O by Infrared Overtone Spectroscopy

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The increasing availability of stable isotopes has stimulated the development of methods for the analysis of these materials. Among the most useful of these isotopes is 13C, which has a natural abundance of 1.1%. NMR and mass spectrometry techniques probably furnish the most sensitive methods of analysis, but dispersive and nondispersive infrared techniques offer promise as the most economical method when sample volume is not critical and where the isotope is present in a simple diatomic molecule. McDowell has discussed the analysis of 13C16O by dispersive infrared spectroscopy using the fundamental stretching vibration at 4664 nm (2144 cm−1). This paper is concerned with the analysis of 13C16O using the infrared overtone bands around 2410 nm (4145 cm−1).

Keywords: Expanded scale spectra; Isotope analysis; Near infrared spectroscopy

Document Type: Short Communication


Affiliations: Beckman Instruments, Inc., Fullerton, California 92634

Publication date: September 1, 1974

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