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Title: Small-mass AMS radiocarbon analysis at Nagoya University
Authors: Minami, M
Kato, T
Miyata, Y
Nakamura, T
Hua, Q
Issue Date: 1-Jan-2013
Citation: Minami, M., Kato, T., Miyata, Y., Nakamura, T., & Hua, Q. (2013). Small-mass AMS radiocarbon analysis at Nagoya University. Nuclear Instruments & Methods in Physics Research B - Beam Interactions with Materials and Atoms, 294, 91-96.
Abstract: As part of the ongoing development at the AMS facility of the Center for Chronological Research at Nagoya University to radiocarbon (C-14) analyze samples smaller than 0.5 mg carbon (mgC), a compact graphitization manifold has been built. Tests with various reference materials show it performs well for samples as small as 0.1 mgC. Preparation with this new system is compared with the performance of the older protocol for regular-sized samples. Furthermore, it is shown that the addition of Cu and Ag before and stepwise heating during sealed-tube combustion of samples with high S content improve the degree of conversion to CO2 without having to resort to special purification measures such as the use of Co3O4 + Ag reagent and an n-pentane/LN2 trap before graphitization. © 2013, Elsevier Ltd.
ISSN: 0168-583X
Appears in Collections:Journal Articles

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