Method for measurement of volatile oxygenated hydrocarbons in ambient air

Leibrock, E.; Slemr, J.

doi:10.1016/s1352-2310(97)00155-6

Cited by 37 publications

(14 citation statements)

References 23 publications

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“…Instead, these VOCs are removed from the sample along with the water, and quantitative results are much more difficult. One method for separating water from the more polar atmospheric trace VOCs that has been used with success is twodimensional chromatography (34,35,5). We have employed similar methods in the analysis described below.…”

Section: Methodsmentioning

confidence: 99%

Canopy Level Fluxes of 2-Methyl-3-buten-2-ol, Acetone, and Methanol by a Portable Relaxed Eddy Accumulation System

Baker

Guenther

Greenberg

et al. 2001

Environ. Sci. Technol.

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Canopy level flux measurements of 2-methyl-3-buten-2-ol (MBO), acetone, and methanol were made over a subalpine forest in the Rocky Mountains in Colorado in the summer of 1999. The measurements were carried out using a portable relaxed eddy accumulation system that collected samples on adsorbent cartridges. Midday fluxes of acetone were highest at ∼2.5 mg of C m -2 h -1 . Methanol and MBO fluxes were ∼1.0 mg of C m -2 h -1 each. These fluxes occurred with average daytime high temperatures of only 18°C. Diurnal fluxes of MBO were strongly correlated with light and temperature. Acetone and methanol did not have simple diurnal patterns. These results indicate that oxygenated volatile organic compounds may make a significant contribution to the flux of reactive carbon to the atmosphere in western U.S. pine forests.

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Section: Methodsmentioning

confidence: 99%

Canopy Level Fluxes of 2-Methyl-3-buten-2-ol, Acetone, and Methanol by a Portable Relaxed Eddy Accumulation System

Baker

Guenther

Greenberg

et al. 2001

Environ. Sci. Technol.

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“…This technique allows relatively easy sample collection in the field but suffers from low time resolution and possible interferences. Gas chromatography (GC) has also been used to measure a number of OVOCs including alcohols, aldehydes (>C 1 ) and ketones [e.g., Goldan et al , 1995; Lamanna and Goldstein , 1999; Leibrock and Slemr , 1997]. The most commonly used detectors for GC OVOC measurements have been the flame ionization detector (FID) and mass spectrometry (MS).…”

Section: Introductionmentioning

confidence: 99%

“…Excellent examples of this technique are given by Schade et al [2000] and Goldan et al [1995]. GC‐MS has become an increasingly popular technique for ground‐based studies of OVOCs [e.g., Helmig and Greenberg , 1994; Yokouchi , 1994; Montzka et al , 1993, 1995; Leibrock and Slemr , 1997; Biesenthal et al , 1997; Starn et al , 1998; Riemer et al , 1998; Apel et al , 2002, 2003] and recently has been deployed on an aircraft platform [ Apel et al , 2003]. Modern GC‐MS systems are capable of detecting OVOCs with high sensitivity and excellent selectivity.…”

Section: Introductionmentioning

confidence: 99%

Intercomparison of oxygenated volatile organic compound measurements at the SAPHIR atmosphere simulation chamber

et al. 2008

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[1] This paper presents results from the first large-scale in situ intercomparison of oxygenated volatile organic compound (OVOC) measurements. The intercomparison was conducted blind at the large (270 m 3 ) simulation chamber, Simulation of Atmospheric Photochemistry in a Large Reaction Chamber (SAPHIR), in Jülich, Germany. Fifteen analytical instruments, representing a wide range of techniques, were challenged with measuring atmospherically relevant OVOC species and toluene (14 species, C 1 to C 7 ) in the approximate range of 0.5-10 ppbv under three different conditions: (1) OVOCs with no humidity or ozone, (2) OVOCs with humidity added (r.h. % 50%), and (3) OVOCs with ozone (%60 ppbv) and humidity (r.h. % 50%). The SAPHIR chamber proved to be an excellent facility for conducting this experiment. Measurements from individual instruments were compared to mixing ratios calculated from the chamber volume and the known amount of OVOC injected into the chamber. Benzaldehyde and 1-butanol, compounds with the lowest vapor pressure of those studied, presented the most overall difficulty because of a less than quantitative transfer through some of the participants' analytical systems. The performance of each individual instrument is evaluated with respect to reference values in terms of time series and correlation plots for each compound under the three measurement conditions. A few of the instruments performed very well, closely matching the reference values, and all techniques demonstrated the potential for quantitative OVOC measurements. However, this study showed that nonzero offsets are present for specific compounds in a number of instruments and overall improvements are necessary for the majority of the techniques evaluated here.Citation: Apel, E. C., et al. (2008), Intercomparison of oxygenated volatile organic compound measurements at the SAPHIR atmosphere simulation chamber,

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“…Excellent examples of this technique can be found in the work of Schade et al [2000] and Goldan et al [1995]. GC‐MS has become an increasingly popular technique for ground‐based studies of OVOCs [e.g., Helmig et al , 1998; Yokouchi , 1994; Montzka et al , 1993, 1995; Leibrock and Slemr , 1997; Biesenthal et al , 1997; Starn et al , 1998; Riemer et al , 1998; Apel et al , 2002]. High sensitivity and excellent selectivity are characteristic of modern GC‐MS systems.…”

Section: Introductionmentioning

confidence: 99%

A fast‐GC/MS system to measure C₂ to C₄ carbonyls and methanol aboard aircraft

et al. 2003

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[1] A fast response gas chromatograph/mass spectrometer (FGCMS) instrument to measure C 2 through C 4 carbonyl compounds and methanol was developed for the NASA Global Tropospheric Experiment (GTE) Transport and Chemical Evolution over the Pacific (TRACE-P) mission. The system consists of four major components: sample inlet, preconcentration system, gas chromatograph (GC), and detector. The preconcentration system is a custom-built cryogen-conservative system. The GC is a compact, custom-built unit that can be temperature programmed and rapidly cooled. Detection is accomplished with an Agilent Technologies 5973 mass spectrometer. The FGCMS instrument provides positive identification because the compounds are chromatographically separated and mass selected. During TRACE-P, a sample was analyzed every 5 min. The FGCMS limit of detection was between 5 and 75 pptv, depending on the compound. The entire instrument package is contained in a standard NASA instrument rack (106 cm Â 61 cm Â 135 cm), consumes less than 1200 watts and is fully automated with LabVIEW TM 6i. Methods were developed for producing highly accurate gas phase standards for the target compounds and for testing the system in the presence of potential interferents. This paper presents data on these tests and on the general overall performance of the system in the laboratory and aboard the DC-8 aircraft during the mission. Vertical profiles for acetaldehyde, methanol, acetone, propanal, methyl ethyl ketone, and butanal from FGCMS data collected over the entire mission are also presented.

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Method for measurement of volatile oxygenated hydrocarbons in ambient air

Cited by 37 publications

References 23 publications

Canopy Level Fluxes of 2-Methyl-3-buten-2-ol, Acetone, and Methanol by a Portable Relaxed Eddy Accumulation System

Canopy Level Fluxes of 2-Methyl-3-buten-2-ol, Acetone, and Methanol by a Portable Relaxed Eddy Accumulation System

Intercomparison of oxygenated volatile organic compound measurements at the SAPHIR atmosphere simulation chamber

A fast‐GC/MS system to measure C₂ to C₄ carbonyls and methanol aboard aircraft

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Method for measurement of volatile oxygenated hydrocarbons in ambient air

Cited by 37 publications

References 23 publications

Canopy Level Fluxes of 2-Methyl-3-buten-2-ol, Acetone, and Methanol by a Portable Relaxed Eddy Accumulation System

Canopy Level Fluxes of 2-Methyl-3-buten-2-ol, Acetone, and Methanol by a Portable Relaxed Eddy Accumulation System

Intercomparison of oxygenated volatile organic compound measurements at the SAPHIR atmosphere simulation chamber

A fast‐GC/MS system to measure C2 to C4 carbonyls and methanol aboard aircraft

Contact Info

Product

Resources

About

A fast‐GC/MS system to measure C₂ to C₄ carbonyls and methanol aboard aircraft