BACKGROUNDThe IAEA is conducting market research to obtain information from companies specializing innoble gas mass spectrometry for the analysis of ultra-low levels of tritium in seawater and marinebiota. Interested companies are invited to provide information on their capabilities and relevantsolutions, including (at the IAEA's request) company presentations and/or demonstrations of suitable instruments, including a noble gas mass spectrometer and associated sample preparation module.