Real-time profiling of organic trace gases in the planetary boundary layer by PTR-MS using a tethered balloon

A method for real-time profiling of volatile organic compounds (VOCs) was developed combining the advantages of a tethered balloon as a research platform and of proton transfer reaction mass spectrometry (PTR-MS) as an analytical technique for fast and highly sensitive VOC measurements. A 200 m Tefl...

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Main Authors: R. Schnitzhofer, A. Wisthaler, A. Hansel
Format: Article
Language:English
Published: Copernicus Publications 2009-12-01
Series:Atmospheric Measurement Techniques
Online Access:http://www.atmos-meas-tech.net/2/773/2009/amt-2-773-2009.pdf
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author R. Schnitzhofer
A. Wisthaler
A. Hansel
author_facet R. Schnitzhofer
A. Wisthaler
A. Hansel
author_sort R. Schnitzhofer
collection DOAJ
description A method for real-time profiling of volatile organic compounds (VOCs) was developed combining the advantages of a tethered balloon as a research platform and of proton transfer reaction mass spectrometry (PTR-MS) as an analytical technique for fast and highly sensitive VOC measurements. A 200 m Teflon tube was used to draw sampling air from a tethered aerodynamic balloon to the PTR-MS instrument. Positive and negative artefacts (i.e. formation and loss of VOCs in the tube) were characterised in the laboratory and in the field by a set of 11 atmospherically relevant VOCs including both pure and oxygenated hydrocarbons. The only two compounds that increased or decreased when sampled through the tube were acetone (+7%) and xylene (-6%). The method was successfully deployed during a winter field campaign to determine the small scale spatial and temporal patterns of air pollutants under winter inversion conditions.
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spelling doaj.art-4f373eaef11a4188b734a2735c3b1e7d2022-12-22T00:25:34ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482009-12-0122773777Real-time profiling of organic trace gases in the planetary boundary layer by PTR-MS using a tethered balloonR. SchnitzhoferA. WisthalerA. HanselA method for real-time profiling of volatile organic compounds (VOCs) was developed combining the advantages of a tethered balloon as a research platform and of proton transfer reaction mass spectrometry (PTR-MS) as an analytical technique for fast and highly sensitive VOC measurements. A 200 m Teflon tube was used to draw sampling air from a tethered aerodynamic balloon to the PTR-MS instrument. Positive and negative artefacts (i.e. formation and loss of VOCs in the tube) were characterised in the laboratory and in the field by a set of 11 atmospherically relevant VOCs including both pure and oxygenated hydrocarbons. The only two compounds that increased or decreased when sampled through the tube were acetone (+7%) and xylene (-6%). The method was successfully deployed during a winter field campaign to determine the small scale spatial and temporal patterns of air pollutants under winter inversion conditions.http://www.atmos-meas-tech.net/2/773/2009/amt-2-773-2009.pdf
spellingShingle R. Schnitzhofer
A. Wisthaler
A. Hansel
Real-time profiling of organic trace gases in the planetary boundary layer by PTR-MS using a tethered balloon
Atmospheric Measurement Techniques
title Real-time profiling of organic trace gases in the planetary boundary layer by PTR-MS using a tethered balloon
title_full Real-time profiling of organic trace gases in the planetary boundary layer by PTR-MS using a tethered balloon
title_fullStr Real-time profiling of organic trace gases in the planetary boundary layer by PTR-MS using a tethered balloon
title_full_unstemmed Real-time profiling of organic trace gases in the planetary boundary layer by PTR-MS using a tethered balloon
title_short Real-time profiling of organic trace gases in the planetary boundary layer by PTR-MS using a tethered balloon
title_sort real time profiling of organic trace gases in the planetary boundary layer by ptr ms using a tethered balloon
url http://www.atmos-meas-tech.net/2/773/2009/amt-2-773-2009.pdf
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AT ahansel realtimeprofilingoforganictracegasesintheplanetaryboundarylayerbyptrmsusingatetheredballoon