C 13 C 12
MetadataShow full item record
CitationLe Clercq, M., van der Plicht, J., & Gröning, M. (1998). New 14C reference materials with activities of 15 and 50 pMC. Radiocarbon, 40(1), 295-297.
DescriptionFrom the 16th International Radiocarbon Conference held in Gronigen, Netherlands, June 16-20, 1997.
AbstractTwo new 14C reference materials have been developed for international use, filling a gap in the present C1-C6 series available from the IAEA. By mixing a modern and a synthetic substance, 150 kg of C7 (ca. 50 pMC activity) and C8 (ca. 15 pMC activity), respectively, were obtained.