Articles | Volume 10, issue 11
Atmos. Meas. Tech., 10, 4507–4519, 2017
https://doi.org/10.5194/amt-10-4507-2017
Atmos. Meas. Tech., 10, 4507–4519, 2017
https://doi.org/10.5194/amt-10-4507-2017

Research article 22 Nov 2017

Research article | 22 Nov 2017

System for δ13C–CO2 and xCO2 analysis of discrete gas samples by cavity ring-down spectroscopy

Dane Dickinson et al.

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Latest update: 21 Jan 2022
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Short summary
Cavity ring-down spectroscopy (CRDS) is an increasingly popular technology for isotope analysis of trace gases. However, most commercial CRDS instruments are designed for continuous gas sampling and cannot reliably measure small discrete samples. We present a novel technical adaptation that allows routine analysis of 50 mL syringed samples on an isotopic-CO2 CRDS unit. Our method offers excellent accuracy and precision, fast sample throughput, and is easily implemented in other CRDS instruments.