Articles | Volume 13, issue 7
Atmos. Meas. Tech., 13, 4051–4064, 2020
https://doi.org/10.5194/amt-13-4051-2020
Atmos. Meas. Tech., 13, 4051–4064, 2020
https://doi.org/10.5194/amt-13-4051-2020

Research article 28 Jul 2020

Research article | 28 Jul 2020

Evaluation of a field-deployable Nafion™-based air-drying system for collecting whole air samples and its application to stable isotope measurements of CO2

Dipayan Paul et al.

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Short summary
For reliable measurements of CO2 mole fractions and its stable isotope composition in air samples, one needs to carefully dry them during collection. Here we describe evaluation of a portable, consumable-free and power-free Nafion-based drying system that is currently being used for sample collection over the Amazon. Laboratory tests indicate that this Nafion-based system does not influence the mole fraction measurements of CH4, CO, N2O, SF6, and CO2 and the stable isotope composition of CO2.