Journal
RAPID COMMUNICATIONS IN MASS SPECTROMETRY
Volume 15, Issue 11, Pages 867-872Publisher
JOHN WILEY & SONS LTD
DOI: 10.1002/rcm.310
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We have assessed the accuracy and precision of our flowing afterglow mass spectrometric method (FA-MS) for absolute measurements of deuterium abundance in water using standardised tap water/ D2O mixtures within the D/H range from 155 ppm (local tap water) to 1104 ppm, prepared by the gravimetric method. The results of this study show that a precision and accuracy of 1% can be achieved for the deuterium abundance in water samples. This is quite adequate for the main application, which is the rapid, non-invasive measurement of total body water by deuterium analysis of breath water vapour using the D2O dilution method. Copyright (C) 2001 John Wiley & Sons, Ltd.
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