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Stable isotopes are now increasingly used for the control of origin or authenticity of food products. Among these techniques the measurement of oxygen-18 content of organic compounds has rarely been carried out because of technical difficulties in the preparation and measurement of the samples. A technique has been developed for measuring oxygen-18/oxygen-16 ratios by modifying an elemental analyser device for carrying out the pyrolysis of organic matter. This device is coupled to an isotope ratio mass spectrometer (IRMS) for the oxygen-18 determination of the CO resulting from the pyrolysis of the compound to be analysed.

Additional information

Authors: BRÉAS O, JRC Ispra (IT);GUILLOU C, JRC Ispra (IT);RENIERO F, JRC Ispra (IT);SADA E, JRC Ispra (IT);ANGEROSA F, Istituto Sperimentale per la Elaiotecnica, Pescara (IT)
Bibliographic Reference: Article: Rapid Communication in Mass Spectrometry (1998)
Record Number: 199810422 / Last updated on: 1998-03-31
Original language: en
Available languages: en
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