Articles | Volume 12, issue 6
Atmos. Meas. Tech., 12, 3453–3461, 2019
https://doi.org/10.5194/amt-12-3453-2019
Atmos. Meas. Tech., 12, 3453–3461, 2019
https://doi.org/10.5194/amt-12-3453-2019

Research article 28 Jun 2019

Research article | 28 Jun 2019

Measurements of delays of gas-phase compounds in a wide variety of tubing materials due to gas–wall interactions

Benjamin L. Deming et al.

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AR by Paul Ziemann on behalf of the Authors (08 May 2019)  Author's response    Manuscript
ED: Publish as is (27 May 2019) by Fred Stroh
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Short summary
Losses or measurement delays of gas-phase compounds sampled through tubing are important to atmospheric science. Here we characterize 14 tubing materials by measuring the effects on step changes in organic compound concentration. We find that polymeric tubings exhibit absorptive partitioning behaviour while glass and metal tubings show adsorptive partitioning. Adsorptive materials impart complex humidity, concentration, and VOC–VOC interaction dependencies that absorptive tubings do not.