A Preliminary Determination of the Absolute 14C/12C Ratio of OX-I
Citation
Roberts, M. L., & Southon, J. R. (2007). A preliminary determination of the absolute 14 C/12 C ratio of OX-I. Radiocarbon, 49(2), 441-445.Journal
RadiocarbonDescription
From the 19th International Radiocarbon Conference held in Keble College, Oxford, England, April 3-7, 2006.Additional Links
http://radiocarbon.webhost.uits.arizona.edu/Abstract
A preliminary determination of the absolute 14C/12C ratio of the oxalic acid I standard (NBS SRM 4990B) has been made. Using an accelerator mass spectrometry (AMS) system, a known number of radiocarbon ions were implanted in a thin copper foil. The foil was then combusted with the addition of 14C-free carrier material. This resulting gas (which had a known 14C/12C ratio) was graphitized and compared to OX-I material. This comparison yielded an absolute 14C/12C ratio of OX-I. The absolute 14C/12C ratio of OX-I, coupled with knowledge of the specific activity of OX-1, provides an alternative determination of the 14C half-life.Type
Proceedingstext