期刊
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
卷 405, 期 9, 页码 2763-2770出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-012-6605-3
关键词
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Isotope reference materials are needed to calibrate and validate analytical procedures used for the determination of isotope amount ratios, procedurally defined isotope ratios or so-called delta values. In contrast to the huge analytical progress in isotope ratio analytics, the production of isotope reference materials has not kept pace with the increasing needs of isotope analysts. Three representative isotope systems are used to explain the technical and non-technical difficulties and drawbacks, on one hand, and to demonstrate what can be achieved at its best, on the other hand. A clear statement is given that new isotope reference materials are needed to obtain traceable and thus comparable data, which is essential for all kinds of isotope research. The range of available isotope reference materials and delta reference materials should be increased and matrix reference materials certified for isotope compositions or delta values, which do not exist yet, should be provided.
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