Selenium isotope analysis by N-TIMS: Potential and challenges

- The potential of Se isotope analysis with state-of-the-art TIMS is explored.
- Higher Se signals were observed compared to literature data.
- The precision of δ80/78Se is distinctly deteriorated by a memory Se signal.
- The memory Se represents an accumulation of previous Se measurements.
- TIMS Se isotope analysis could potentially improve precision of ICPMS approaches.