PLATAN 2024 - Merger of the Poznan Meeting on Lasers and Trapping Devices in Atomic Nuclei Research and the International Conference on Laser Probing

Development of mid-infrared cavity ring-down spectrometers for radiocarbon/tritium analysis in biomedical tracer and environmental applications

10 Jun 2024, 16:50

20m

A102 (Agora, University of Jyväskylä, Finland)

Oral Presentation Plenary

Speaker

Prof. Hideki Tomita (Nagoya University)

Description

The long-lived radioactive carbon isotope ¹⁴C is widely used as a tracer in environmental and biomedical studies. We have developed a ¹⁴C analytical system based on highly sensitive cavity-enhanced laser absorption spectroscopy, i.e., cavity ring-down spectroscopy (CRDS), and demonstrated ¹⁴C tracer analysis in pharmacokinetics and other areas. In parallel with the development of the ¹⁴C-CRDS, we are focusing on the development of a mid-infrared cavity ring-down spectrometer for tritium analysis. Combined with a robust injection system for small water samples, the analytical performance of the system was investigated using deuterium water analysis. This presentation will overview the CRDS-based ¹⁴C and ³H analytical systems and recent results.

---

Acknowledgment: This work was partially supported by JST CREST JPMJCR2104, JSPS KAKENHI: Grant-in-Aid for Transformative Research Areas (B) 22H05023, Japan.