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Small sample graphitization for $$^{14}$$C dating using EA-AGE3 at JAEA-AMS-TONO

Watanabe, Takahiro   ; Kokubu, Yoko   ; Fujita, Natsuko   ; Ishizaka, Chika*; Nishio, Tomohiro; Matsubara, Akihiro; Miyake, Masayasu*; Isozaki, Nobuhiro*; Nishizawa, Akimitsu*

Accelerator Mass Spectrometry is widely used for radiometric dating of geological samples. However, improvement in efficiency of sample preparation techniques and trace analysis are needed for high-time resolution dataset. To improve in efficiency of sample preparation techniques and trace analysis, the elemental analyzer and automated graphitization equipment 3 (EA-AGE3) were installed at the Tono Geoscience Center, JAEA. In this study, small amount graphitization of international standard reference materials for radiocarbon dating was tested by the EA-AGE3. For the trace analysis, radiocarbon measurements were performed by the AMS system. The radiocarbon concentrations of the standard materials were good agreement with the consensus values by the international radiocarbon conference within $$pm$$2$$sigma$$.

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