Instrumental Neutron Activation Analysis of Twenty‐Nine International Geochemical Reference Samples

Results of measurements of twenty‐seven elements, most of them in trace amounts, by Instrumental Neutron Activation Analysis (INAA) in twenty‐nine international geochemical reference samples from Canada, U.S.A., Japan, France and South Africa, are reported and compared with available literature values. In general, our data agree well with literature values. The disagreement of our results (e.g., Zr in Canadian syenites and several trace elements in USGS ultrabasic rocks) with those reported by other workers is briefly discussed and ways of improving INAA are pointed out. The present report includes data on several trace elements for which existing data are rather scarce.