Survey of reference materials for trace elements, nuclides and organic microcontaminants |
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Authors: | R. M. Parr S. F. Stone T. Bel-Amakeletch R. Zeisler |
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Affiliation: | (1) Department of Research and Isotopes, International Atomic Energy Agency, P.O. Box 100, A-1400 Vienna, Austria, AT |
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Abstract: | The International Atomic Energy Agency (IAEA), in co-operation with the United Nations Environment Programme (UNEP), has recently prepared a survey on internationally available analytical reference materials for trace elements, nuclides and organic contaminants in biological, environmental and related matrices. The purpose is to help analysts to select reference materials for quality assurance that match as closely as possible, with respect to matrix type and concentrations of the measurands of interest, the “real” samples that are to be measured. The present version of the survey, which is available in the form of two cost-free printed volumes [1], contains over 10,000 certified and information values in 650 reference materials from 27 different producers. The 455 measurands listed include trace elements, major and minor elements, organic contaminants, organometallic compounds, radionuclides and stable isotopes. Currently, the database from which the survey has been produced is being modified and extended so as to make the data available in electronic form via the Internet. Received: 11 June 1997 / Revised: 7 July 1997 / Accepted: 9 July 1997 |
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