Laboratory studies in support of the detection of biogenic unsaturated alcohols by proton transfer reaction-mass spectrometry

Demarcke, M.; Amelynck, Crist; Schoon, Niels; Dhooghe, Frederik; Rimetz-Planchon, Juliette; Langenhove, Herman Van; Dewulf, Jo

doi:10.1016/j.ijms.2009.11.005

Cited by 16 publications

(15 citation statements)

References 33 publications

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“…The anthropogenic species are expected to be minor interferences in a relatively remote location in close proximity to major isoprene sources, such as the Harvard Forest canopy (de Gouw and Warneke, 2007), but the biogenic species could contribute to the flux reported here. The biogenic VOC 2-methyl-3-buten-2-ol (MBO) has a parent ion at m/z = 87, but the majority of the MBO signal is detected as a fragment with m/z = 69 (Demarcke et al, 2010). MBO is emitted in large quantities by yellow, or hard, pines (genus Pinus, subgenus Pinus) found in western North America (Harley et al, 1998;Baker et al, 2001).…”

Section: Measurements Of Bvocsmentioning

confidence: 99%

Emissions of isoprenoids and oxygenated biogenic volatile organic compounds from a New England mixed forest

et al. 2011

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Abstract. Fluxes of biogenic volatile organic compounds, including isoprene, monoterpenes, and oxygenated VOCs measured above a mixed forest canopy in central Massachusetts during the 2005 and 2007 growing seasons are reported. Mixing ratios were measured using proton transfer reaction mass spectrometry (PTR-MS) and fluxes computed by the disjunct eddy covariance technique. Isoprene was by far the predominant BVOC emitted at this site, with summer mid-day average fluxes of 5.3 and 4.4 mg m −2 hr −1 in 2005 and 2007, respectively. In comparison, mid-day average fluxes of monoterpenes were 0.21 and 0.15 mg m −2 hr −1 in each of these years. On short times scales (days), the diel pattern in emission rate compared well with a standard emission algorithm for isoprene. The general shape of the seasonal cycle and the observed decrease in isoprene emission rate in early September was, however, not well captured by the model. Monoterpene emission rates exhibited dependence on light as well as temperature, as determined from the improved fit to the observations obtained by including a light-dependent term in the model. The mid-day average flux of methanol from the canopy was 0.14 mg m

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Section: Measurements Of Bvocsmentioning

confidence: 99%

Emissions of isoprenoids and oxygenated biogenic volatile organic compounds from a New England mixed forest

et al. 2011

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“…In this case, the PTRMS signal at m/z 137 cannot be considered as useful for the quantification of monoterpene emissions. A study of the distributions of the ions for different sesquiterpenes, obtained by PTRMS laboratory measurements, has revealed the presence of ions at m/z 137, with relative abundances up to 6% (for the sesquiterpene β‐caryophyllene) 27, 28. Ions at m/z 137 were observed when studying the reactions between [H 3 O] + and β‐caryophyllene and linalool at thermal conditions by Selected Ion Flow Tube Mass Spectrometry (SIFTMS), with branching ratios of 6%29 and 50%,30 respectively.…”

mentioning

confidence: 99%

Chemical ionization by [NO]⁺ and subsequent collision‐induced dissociation for the selective on‐line detection of monoterpenes and linalool

Rimetz-Planchon

Dhooghe

Schoon

et al. 2011

Rapid Comm Mass Spectrometry

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Existing on-line Chemical Ionization Mass Spectrometry (CIMS) techniques for quantification of atmospheric trace gases, such as Biogenic Volatile Organic Compounds (BVOCs), suffer from difficulty in discriminating between isomeric (and more generally isobaric) compounds. Selective detection of these compounds, however, is important because they can affect atmospheric chemistry in different ways, depending on their chemical structure. In this work, Flowing Afterglow Tandem Mass Spectrometry (FATMS) was used to investigate the feasibility of the selective detection of a series of monoterpenes, an oxygenated monoterpene (linalool) and a sesquiterpene (β-caryophyllene). Ions at m/z 137 from [H(3)O](+) chemical ionization of α-pinene, linalool and β-caryophyllene have been subjected to Collision-Induced Dissociation (CID) with Ar in the collision cell of a tandem mass spectrometer at center-of-mass energies ranging between 0 and 8 eV. Similar fragmentation patterns were obtained, demonstrating that this method is not suited for the selective detection of these compounds. However, CID of the ions at m/z 136 produced via [NO](+) chemical ionization of a series of monoterpenes has revealed promising results. Some tracer-product ions for individual compounds or groups of compounds were found, which can be considered as a step forward towards selective on-line monitoring of BVOCs with CIMS techniques.

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“…These branching ratios were determined using the same drift tube operating parameters (pressure, voltage, temperature) as used in the urban air monitoring in this study. The branching ratio to m/z 41 for methacrolein was 4% [14].…”

Section: Calculation Of the Acetonitrile Interference From Other Indimentioning

confidence: 93%

“…A fragment ion signal at m/z 41 was also observed when this PTR-MS, operating with H 3 O + as the primary reagent ion, was exposed to individual prepared gaseous standards of pure isoprene, acetaldehyde, C 3 and C 4 alcohols, and C 4 and C 5 formate esters. Product ions at m/z 41 have been observed as a result of reactions with H 3 O + for methacrolein and 1-butene [13], propyne [7] and C 4 -C 9 saturated and unsaturated alcohols [14,15]. Thus all of these compounds contribute through their fragmentation to m/z 41, and their single 13 C isotopologue to the signal at m/z 42.…”

Section: Ptr-ms Selectivity At M/z 42mentioning

confidence: 99%

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Interference in the PTR-MS measurement of acetonitrile at m/z 42 in polluted urban air—A study using switchable reagent ion PTR-MS

Dunne

Galbally

Lawson

et al. 2012

International Journal of Mass Spectrometry

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Laboratory studies in support of the detection of biogenic unsaturated alcohols by proton transfer reaction-mass spectrometry

Cited by 16 publications

References 33 publications

Emissions of isoprenoids and oxygenated biogenic volatile organic compounds from a New England mixed forest

Emissions of isoprenoids and oxygenated biogenic volatile organic compounds from a New England mixed forest

Chemical ionization by [NO]⁺ and subsequent collision‐induced dissociation for the selective on‐line detection of monoterpenes and linalool

Interference in the PTR-MS measurement of acetonitrile at m/z 42 in polluted urban air—A study using switchable reagent ion PTR-MS

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Laboratory studies in support of the detection of biogenic unsaturated alcohols by proton transfer reaction-mass spectrometry

Cited by 16 publications

References 33 publications

Emissions of isoprenoids and oxygenated biogenic volatile organic compounds from a New England mixed forest

Emissions of isoprenoids and oxygenated biogenic volatile organic compounds from a New England mixed forest

Chemical ionization by [NO]+ and subsequent collision‐induced dissociation for the selective on‐line detection of monoterpenes and linalool

Interference in the PTR-MS measurement of acetonitrile at m/z 42 in polluted urban air—A study using switchable reagent ion PTR-MS

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Chemical ionization by [NO]⁺ and subsequent collision‐induced dissociation for the selective on‐line detection of monoterpenes and linalool