T03_02

New absorption-catalytic setup for graphitization of C-containing gases from water sources

Parkhomchuk E^1,2,3, Petrozhitskiy A^1,2,3, Ignatov M^1,3, Kuleshov D^1,3, Kalinkin P⁴, Novikov D⁵, Sabrekov A⁶, Parkhomchuk V^1,2

¹Novosibirsk State University, Novosibirsk, Russian Federation, ²Budker Institute of Nuclear Physics Siberian Branch Russian Academy of Sciences , Novosibirsk, Russian Federation, ³Institute of Archaeology and Ethnography Siberian Branch Russian Academy of Sciences , Novosibirsk, Russian Federation, ⁴Boreskov Institute of Catalysis Siberian Branch Russian Academy of Sciences , Novosibirsk, Russian Federation, ⁵Trofimuk Institute of Petroleum Geology and Geophysics Siberian Branch Russian Academy of Sciences , Novosibirsk, Russian Federation, ⁶Severtsov Institute of Ecology and Evolution Russian Academy of Sciences , Moscow, Russian Federation

The AMS Golden Valley laboratory is equipped with two accelerator mass spectrometers: BINP AMS facility and MICADAS-28, and two graphitization systems: AGE-3 and Absorption-catalytic setup, developed in Boreskov Institute of Catalysis (ACS BIC). The last one is designed for graphitization of labeled biomedical samples, dissolved organics and dissolved or gaseous carbon dioxide. Detailed description and characteristics of ACS BIC will be presented compared with that one’s of AGE-3 on the samples from Glasgow International Radiocarbon Inter-comparison (GIRI). A comparison of the results from two series of experiments with GIRI samples: AGE-3 + MICADAS-28 and ACS BIC + MICADAS-28 will be given. Some results on dating of methane seeps – cm-sized holes and craters with an active release of gas bubbles and water, found in Western Siberia, and dating of carbon dissolved in springs in Novosibirsk region, will be also presented. Novel technique for graphitization of CH₄ and CO₂, dissolved in water, was provided by ACS BIC.