Ion chromatographic separation and quantitation of alkyl methylamines and ethylamines in atmospheric gas and particulate matter using preconcentration and suppressed conductivity detection

VandenBoer, Trevor C.; Markovic, M. Z.; Petroff, Alexandre; Czar, Martin F.; Borduas-Dedekind, Nadine; Murphy, J. G.

doi:10.1016/j.chroma.2012.06.062

Cited by 52 publications

(56 citation statements)

References 69 publications

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“…Sulfate and ammonium consistently exhibited a peak between 0.32 and 0.56 μm suggesting that aminium salt formation with sulfate was likely. Size-resolved amine measurements in other regions (marine, urban, rural) have shown that alkyl amines are most abundant between 0.14 and 0.56 um (Facchini et al, 2008; Muller et al, 2009; VandenBoer et al, 2011, 2012). Amine nitrate salts are not likely since nitrate consistently exhibited its mode above 1 μm due to probable reactions of gas-phase nitric acid with surfaces of coarse particles such as dust (Sorooshian et al, 2013).…”

Section: Resultsmentioning

confidence: 99%

Dimethylamine as a major alkyl amine species in particles and cloud water: Observations in semi-arid and coastal regions

Youn

Crosbie

Maudlin

et al. 2015

Atmospheric Environment

100

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Aerosol and cloud water measurements of dimethylamine (DMA), the most abundant amine in this study, were conducted in semi-arid (Tucson, Arizona) and marine (Nucleation in California Experiment, NiCE; central coast of California) areas. In both regions, DMA exhibits a unimodal aerosol mass size distribution with a dominant peak between 0.18 and 0.56 μm. Particulate DMA concentrations increase as a function of marine biogenic emissions, sulfate, BVOC emissions, and aerosol-phase water. Such data supports biogenic sources of DMA, aminium salt formation, and partitioning of DMA to condensed phases. DMA concentrations exhibit positive correlations with various trace elements and most especially vanadium, which warrants additional investigation. Cloud water DMA levels are enhanced significantly during wildfire periods unlike particulate DMA levels, including in droplet residual particles, due to effective dissolution of DMA into cloud water and probably DMA volatilization after drop evaporation. DMA:NH+4 molar ratios peak between 0.18 and 1.0 μm depending on the site and time of year, suggesting that DMA competes better with NH3 in those sizes in terms of reactive uptake by particles.

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Section: Resultsmentioning

confidence: 99%

Dimethylamine as a major alkyl amine species in particles and cloud water: Observations in semi-arid and coastal regions

Youn

Crosbie

Maudlin

et al. 2015

Atmospheric Environment

100

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“…1,2 Much more recent progress has been made, reporting results from field observations, theoretical calculations, and laboratory experiments and advancing instrumentation for detection of amines in the gas phase and particles. 25 The chemical Ionization Mass Spectrometer (CIMS) using protonated water clusters, 23 ethanol or acetone 26 has been employed to detect ambient gaseous amines with concentrations down to the parts per trillion (ppt) level. [21][22][23] Amines have been scrubbed by acid or water and analyzed using chromatography coupled with mass spectrometry (MS) methods, such as gas chromatography-MS (GC-MS), 21 liquid chromatography-MS (LC-MS), 21,24 and ion chromatography-MS (IC-MS).…”

Section: Introductionmentioning

confidence: 99%

Multiphase chemistry of atmospheric amines

Qiu

Zhang

2013

Phys. Chem. Chem. Phys.

206

203

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Heterogeneous reactions of amines have been recently shown to play an important role in the formation and transformation of atmospheric aerosols. This perspective summarizes the latest laboratory progress in the multiphase chemistry of amines. Particular emphasis is given to the contributions of amines to new particle formation, growth of submicron particles, and alteration in the physiochemical properties of pre-existing particles, including hygroscopicity, thermostability, density, phase, and optical properties, from exposure to gaseous amines. The atmospheric implications of the multiphase reactions of amines, including the potential impact on direct and indirect climate forcing of aerosols, and future research directions are discussed.

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“…Due to their high reactivity and low concentrations, measurements of gaseous amines in the background atmosphere are very limited (Ge et al, 2011a). Several studies show [DMA] is below 1 pptv in urban areas (Grönberg et al, 1992a, b) while a couple of other studies observed [DMA] around a few pptv in rural and coastal areas (Hanson et al, 2011;VandenBoer et al, 2011VandenBoer et al, , 2012Van Neste et al, 1987;Gibb et al, 1999). Although TMA is generally more abundant (Ge et al, 2011a), the concentration of TMA needed to substantially enhance nucleation remains to be studied.…”

Section: Introductionmentioning

confidence: 99%

Modeling of gaseous methylamines in the global atmosphere: impacts of oxidation and aerosol uptake

Luo

2014

Atmos. Chem. Phys.

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Abstract. Gaseous amines have attracted increasing attention due to their potential role in enhancing particle nucleation and growth and affecting secondary organic aerosol formation. Here we study with a chemistry transport model the global distributions of the most common and abundant amines in the air: monomethylamine (MMA), dimethylamine (DMA), and trimethylamine (TMA). We show that gas phase oxidation and aerosol uptakes are dominant sinks for these methylamines. The oxidation alone (i.e., no aerosol uptake) leads to methylamine lifetimes of 5-10 h in most parts of low and middle latitude regions. The uptake by secondary species with uptake coefficient (γ ) of 0.03 (corresponding to the uptake by sulfuric acid particles) reduces the lifetime by ∼30 % over oceans and much more over the major continents, resulting in a methylamine lifetime of less than 1-2 h over central Europe, eastern Asia, and eastern US. With the estimated global emission flux, from the literature, our simulations indicate that [DMA] in the model surface layer over major continents is generally in the range of 0.1-2 ppt (parts per trillion) when γ = 0.03 and 0.2-10 ppt when γ = 0, and decreases quickly with altitude.[DMA] over oceans is below 0.05 ppt and over polar regions it is below 0.01 ppt. The simulated [MMA] is about a factor of ∼2.5 higher while [TMA] is a factor of ∼8 higher than [DMA]. The modeled concentrations of methylamines are substantially lower than the limited observed values available, with normalized mean bias ranging from −57 (γ = 0) to −88 % (γ = 0.03) for MMA and TMA, and from −78 (γ = 0) to −93 % (γ = 0.03) for DMA.

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Ion chromatographic separation and quantitation of alkyl methylamines and ethylamines in atmospheric gas and particulate matter using preconcentration and suppressed conductivity detection

Cited by 52 publications

References 69 publications

Dimethylamine as a major alkyl amine species in particles and cloud water: Observations in semi-arid and coastal regions

Dimethylamine as a major alkyl amine species in particles and cloud water: Observations in semi-arid and coastal regions

Multiphase chemistry of atmospheric amines

Modeling of gaseous methylamines in the global atmosphere: impacts of oxidation and aerosol uptake

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