TY - JOUR A1 - Vogl, Jochen A1 - Rosner, Martin A1 - Pritzkow, Wolfgang T1 - The need for new isotope reference materials N2 - 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 δ 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 δ reference materials should be increased and matrix reference materials certified for isotope compositions or δ values, which do not exist yet, should be provided. KW - Isotope reference materials KW - Delta reference materials KW - Synthetic isotope mixtures KW - Mass spectrometry KW - Comparability KW - Traceability KW - Measurement uncertainty PY - 2013 U6 - https://doi.org/10.1007/s00216-012-6605-3 SN - 1618-2642 SN - 1618-2650 VL - 405 IS - 9 SP - 2763 EP - 2770 PB - Springer CY - Berlin AN - OPUS4-28169 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -