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| Ponzevera, Emmanuel; Quetel, Christophe R.; Hendrickx, Frans; Fortunato, Giuseppino. |
| This paper describes the preparation of a new type of Pb delta-isotopic Certified Reference Materials (delta-iCRMs), available in liquid form (Pb mass fraction similar to 100 mu g g(-1), 2 mL, 3% HNO3) to prevent the risk of insufficient isotopic homogeneity. These materials are intended for the validation of delta-scale isotope ratio measurements, and come in four pairs. The quantities certified are the relative differences on values of n(Pb-207)/n(Pb-204), n(Pb-207)/n(Pb-206) and n(Pb-207)/n(Pb-208) ratios between the members of each pair. There is a material with similar to natural Pb-isotopic composition (ERM-3800, delta-0 material), common to all pairs, and the same similar to natural Pb progressively enriched in Pb-207 (ERM-3810 series). Pairs I to... |
| Tipo: Text |
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| Ano: 2009 |
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