GC–MS analysis of low-molecular-weight dicarboxylic acids in atmospheric aerosol: comparison between silylation and esterification derivatization procedures

Pietrogrande, Maria Chiara; Bacco, Dimitri; Mercuriali, Mattia
January 2010
Analytical & Bioanalytical Chemistry;Jan2010, Vol. 396 Issue 2, p877
Academic Journal
This paper describes methods for the determination of low-molecular-weight (LMW) dicarboxylic acids in atmospheric aerosols as important chemical tracers for source apportionment of aerosol organics and for studying atmospheric processes leading to secondary organic aerosol formation. The two derivatization procedures most widely used in GC analysis of dicarboxylic acids were compared: esterification using BF3/alcohol reagent and silylation using N, O-bis(trimethylsilyl)-trifluoroacetamide (BSTFA). The advantages and drawbacks of the two methods are investigated and compared in terms of (1) precision and accuracy of the results and (2) sensitivity and detection limit of the procedure. The comparative investigation was performed on standard solutions containing target C3–C9 dicarboxylic acids and on experimental particulate matter (PM) samples. Attention was focused on low-volume sampling devices that collect small amounts of sample for organic speciation. The results show that, overall, both the techniques appear suitable for the analysis of LMW dicarboxylic acids in atmospheric aerosols since they provide low detection limits (≤4 ng m−3) and satisfactory reproducibility (RSD% ≤ 15%). Between them, BSTFA should be the reagent of choice under the most limiting conditions of PM filters collected by low-volume air samplers: It provides determination of all the target C3–C9 dicarboxylic acids with lower detection limits (≤2 ng m−3) and higher reproducibility (RSD% ≤ 10%) [Figure not available: see fulltext.]


Related Articles

  • Molecular distributions of dicarboxylic acids, ketocarboxylic acids and α-dicarbonyls in biomass burning aerosols: implications for photochemical production and degradation in smoke layers. Kundu, S.; Kawamura, K.; Andreae, T. W.; Hoffer, A.; Andreae, M. O. // Atmospheric Chemistry & Physics;2010, Vol. 10 Issue 5, p2209 

    Aerosols in the size class <2.5 μm (6 daytime and 9 nighttime samples) were collected at a pasture site in Rondϴnia, Brazil, during the intensive biomass burning period of 16-26 September 2002 as part of the Large-Scale Biosphere-Atmosphere Experiment in Amazonia - Smoke, Aerosols, Clouds,...

  • Composition of Organic Compounds Adsorbed on PM10 in the Air Above Maribor. Miuc, Alen; Vončina, Ernest; Lešnik, Uroš // Acta Chimica Slovenica;2015, Vol. 62 Issue 4, p834 

    Organic compounds in atmospheric particulate matter above Maribor were analysed in 120 samples of PM10 sampled according to the EN 12341:2014 reference method. Organic compounds compositions were investigated together with the primary and secondary sources of air pollution. Silylation as...

  • Astrochemistry: Complex organic matter in Titan's aerosols? (Reply). Israël, G.; Szopa, C.; Raulin, F.; Cabane, M.; Niemann, H. B.; Atreya, S. K.; Bauer, S. J.; Brun, J.-F.; Chassefière, E.; Coll, P.; Condé, E.; Coscia, D.; Hauchecorne, A.; Millian, P.; Nguyen, M. J.; Owen, T.; Riedler, W.; Samuelson, R. E.; Siguier, J.-M.; Steller, M. // Nature;11/30/2006, Vol. 444 Issue 7119, pE6 

    Biemann et al. calls into question our preliminary interpretations of our experimental results. A comparison of laboratory and flight measurements should settle the uncertainties he raises. In addition to evaluating instrumental characteristics such as the 'piston effect', a technique we used...

  • Simultaneous factor analysis of organic particle and gas mass spectra: AMS and PTR-MS measurements at an urban site. Slowik, J. G.; Vlasenko, A.; McGuire, M.; Evans, G. J.; Abbatt, J. P. D. // Atmospheric Chemistry & Physics;2010, Vol. 10 Issue 4, p1969 

    During the winter component of the SPORT (Seasonal Particle Observations in the Region of Toronto) field campaign, particulate non-refractory chemical composition and concentration of selected volatile organic compounds (VOCs) were measured by an Aerodyne time-offlight aerosol mass spectrometer...

  • GC/MS analysis of water-soluble organics in atmospheric aerosol: optimization of a solvent extraction procedure for simultaneous analysis of carboxylic acids and sugars. Pietrogrande, Maria; Bacco, Dimitri; Chiereghin, Sara // Analytical & Bioanalytical Chemistry;Jan2013, Vol. 405 Issue 2/3, p1095 

    The main goal of the present study was to develop a procedure for the simultaneous GC/MS analysis of a wide range of water-soluble organic compounds (WSOCs, mainly dicarboxylic acids and sugars) in atmospheric aerosol as chemical markers of atmospheric processes. The response surface...

  • Organic composition of carbonaceous aerosols in an aged prescribed fire plume. Yan, B.; Zheng, M.; Hu, Y. T.; Lee, S.; Kim, H. K.; Russell, A. G. // Atmospheric Chemistry & Physics Discussions;2007, Vol. 7 Issue 6, p18015 

    Aged smoke from a prescribed fire (dominated by conifers) impacted Atlanta, GA on 28 February 2007 and dramatically increased hourly ambient concentrations of PM2.5 and organic carbon (OC) up to 140 and 72 μgm-3, respectively. It was estimated that over 1 million residents were exposed to the...

  • Source apportionment and the role of meteorological conditions in the assessment of air pollution exposure due to urban emissions. Schäfer, K.; Elsasser, M.; Arteaga-Salas, J. M.; Gu, J.; Pitz, M.; Schnelle-Kreis, J.; Cyrys, J.; Emeis, S.; Prevot, A. S. H.; Zimmermann, R. // Atmospheric Chemistry & Physics Discussions;2014, Vol. 14 Issue 2, p2235 

    As particulate matter (PM) impacts human health, knowledge about its composition, exposure and source apportionment is required. A study of the urban atmosphere in the case of Augsburg, Germany, during winter (31 January-12 March 2010) is thus presented here. Investigations were performed on the...

  • Real-time, controlled OH-initiated oxidation of biogenic secondary organic aerosol. Slowik, J. G.; Wong, J. P. S.; Abbatt, J. P. D. // Atmospheric Chemistry & Physics Discussions;2012, Vol. 12 Issue 3, p8183 

    The chemical complexity of atmospheric organic aerosol (OA) requires novel methods for characterization of its components and description of its atmospheric processing-induced transformations. We present the first field deployment of the Toronto Photooxidation Tube (TPOT), a field-deployable...

  • Chemical aging of m-xylene secondary organic aerosol: laboratory chamber study. Loza, C. L.; Chhabra, P. S.; Yee, L. D.; Craven, J. S.; Flagan, R. C.; Seinfeld, J. H. // Atmospheric Chemistry & Physics Discussions;2011, Vol. 11 Issue 9, p24969 

    Secondary organic aerosol (SOA) can reside in the atmosphere for a week or more. While its initial formation from the gas-phase oxidation of volatile organic compounds tends to take place in the first few hours after emission, SOA can continue to evolve chemically over its atmospheric lifetime....


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics