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Título: | 14C determination in different bio-based products |
Autor: | Santos, F. J. CSIC ORCID; Gómez-Martínez, Isabel CSIC; Agulló García, Lidia CSIC; Reina, María Teresa; García-León, Manuel CSIC ORCID | Palabras clave: | Bio-based AMS Radiocarbon |
Fecha de publicación: | 2015 | Editor: | Elsevier | Citación: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 361: 354-357 (2015) | Resumen: | Radiocarbon determination can be used as a tool to investigate the presence of biological elements in different bio-based products, such as biodiesel blends. These products may also be produced from fossil materials obtaining the same final molecules, so that composition is chemically indistinguishable. The amount of radiocarbon in these products can reveal how much of these biological elements have been used, usually mixed with petrol derived components, free of 14C. Some of these products are liquid and thus the handling at the laboratory is not as straightforward as with solid samples. At Centro Nacional de Aceleradores (CNA) we have tested the viability of these samples using a graphitization system coupled to an elemental analyzer used for combustion of the samples, thus avoiding any vacuum process. Samples do not follow any chemical pre-treatment procedure and are directly graphitized. Specific equipment for liquid samples related to the elemental analyzer was tested. Measurement of samples was performed by low-energy AMS at the 1 MV HVEE facility at CNA, paying special attention to background limits and reproducibility during sample preparation. | URI: | http://hdl.handle.net/10261/158384 | DOI: | 10.1016/j.nimb.2015.01.033 | Identificadores: | doi: 10.1016/j.nimb.2015.01.033 issn: 0168-583X |
Aparece en las colecciones: | (CNA) Artículos |
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