Articles | Volume 16, issue 21
Research article
08 Nov 2023
Research article |  | 08 Nov 2023

Measurements of volatile organic compounds in ambient air by gas-chromatography and real-time Vocus PTR-TOF-MS: calibrations, instrument background corrections, and introducing a PTR Data Toolkit

Andrew R. Jensen, Abigail R. Koss, Ryder B. Hales, and Joost A. de Gouw

Data sets

Volatile Organic Compound Measurements in Boulder, CO Mar–Apr 2021 Andrew Jensen, Abigail Koss, Ryder Hales, Joost de Gouw

Model code and software

PTR Data Toolkit Andrew Jensen, Joost de Gouw

Short summary
Quantification of a wide range of volatile organic compounds by proton-transfer-reaction mass spectrometry (PTR-MS) can be achieved with direct calibration of only a subset of compounds, characterization of instrument response, and simple reaction kinetics. We characterized our Vocus PTR-MS and developed a toolkit as a guide through this process. A catalytic zero air generator provided the lowest detection limits, and short, frequent calibrations informed variability in instrument response.