Optimization of a Picarro L2140-i cavity ring-down spectrometer for routine measurement of triple oxygen isotope ratios in meteoric waters

Hutchings, Jack A.; Konecky, Bronwen L.

doi:https://doi.org/10.5194/amt-16-1663-2023

Articles | Volume 16, issue 6

https://doi.org/10.5194/amt-16-1663-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-16-1663-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 6

Research article

|

29 Mar 2023

Research article |

| 29 Mar 2023

Optimization of a Picarro L2140-i cavity ring-down spectrometer for routine measurement of triple oxygen isotope ratios in meteoric waters

Jack A. Hutchings and Bronwen L. Konecky

Data sets

Optimization of the Picarro L2140-i Cavity Ring Down Spectrometer for Routine Measurement of Triple Oxygen Isotope Ratios in Meteoric Waters Jack Hutchings https://doi.org/10.17605/OSF.IO/HGN8K

Short summary

The coupled variation of the three stable isotopes of oxygen in water is being studied as a relatively new tracer of the water cycle. Measurement by laser spectroscopy has a number of pitfalls that have hampered a wider exploration of this new tracer. We demonstrate successful analysis using Picarro's L2140-i analyzer and provide recommendations for other users. We find that removal of dissolved organic carbon is required when measurements are studied near the limits of instrumental accuracy.