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Chemical Ionization Mass Spectrometry (Cims) May Not Measure All Gas-phase Sulfuric Acid If Base Molecules Are Present : Volume 10, Issue 12 (15/12/2010)

By Kurtén, T.

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Book Id: WPLBN0003979577
Format Type: PDF Article :
File Size: Pages 30
Reproduction Date: 2015

Title: Chemical Ionization Mass Spectrometry (Cims) May Not Measure All Gas-phase Sulfuric Acid If Base Molecules Are Present : Volume 10, Issue 12 (15/12/2010)  
Author: Kurtén, T.
Volume: Vol. 10, Issue 12
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2010
Publisher: Copernicus Gmbh, Göttingen, Germany

Citation

APA MLA Chicago

Ortega, I. K., Petäjä, T., Kulmala, M., Worsnop, D. R., Smith, J., Ehn, M.,...Mauldin, L. (2010). Chemical Ionization Mass Spectrometry (Cims) May Not Measure All Gas-phase Sulfuric Acid If Base Molecules Are Present : Volume 10, Issue 12 (15/12/2010). Retrieved from http://www.ebooklibrary.org/


Description
Description: Division of Atmospheric Science, Department of Physics, P.O. Box 64, 00014 University of Helsinki, Finland. The state-of-the art method for measuring atmospheric gas-phase sulfuric acid is chemical ionization mass spectrometry (CIMS) based on nitrate reagent ions. Using computed proton affinities and reaction thermodynamics for the relevant charging reactions, we show that in the presence of strong bases such as amines, which tend to cluster with the sulfuric acid molecules, a significant fraction of the total gas-phase sulfuric acid may not be measured by a CIMS instrument. If this is the case, this effect has to be taken into account in the interpretation of atmospheric sulfuric acid measurement data, as well as in intercomparison of different CIMS instruments, which likely have different susceptibilities to amine-sulfuric acid clustering.

Summary
Chemical ionization mass spectrometry (CIMS) may not measure all gas-phase sulfuric acid if base molecules are present

Excerpt
Arnold, J. R., Hartsell, B. E., Luke, W. T., Ullah, S. M. R., Dasgupta, P. K., Huey, L. G., and Tate, P.: Field test of four methods for gas-phase ambient nitric acid, Atmos. Environ., 41, 4210–4226, 2007.; Arnold, J. R. and Luke, W. T.: Nitric acid and the origin and size segregation of aerosol nitrate aloft during BRACE 2002, Atmos. Environ., 41 4227–4241, 2007.; Bartmess, J. E.: Negative Ion Energetics Data, in NIST Chemistry WebBook, NIST Standard Reference Database Number 69, edited by: Linstrom, P. J. and Mallard, W. G., National Institute of Standards and Technology, Gaithersburg MD, 20899, http://webbook.nist.gov, retrieved September 2010.; Berresheim, H., Elste, T., Plass-Dülmer, C., Eisele, F. L., and Tanner, D. J.: Chemical ionization mass spectrometer for longterm measurements of atmospheric OH and H2SO4, Int. J. Mass. Spec., 202, 91–109, 2000.; Ehn, M., Junninen, H., Pet�j�, T., Kurtén, T., Kerminen, V.-M., Schobesberger, S., Manninen, H. E., Ortega, I. K., Vehkamäki, H., Kulmala, M., and Worsnop, D. R.: Composition and temporal behavior of ambient ions in the boreal forest, Atmos. Chem. Phys., 10, 8513–8530, doi:10.5194/acp-10-8513-2010, 2010.; Eisele, F. and Tanner, D.: Measurement of the gas phase concentration of H2SO4 and methane sulfonic acid and estimates of H2SO4 production and loss in the atmosphere, J. Geophys. Res., 98(D5), 9001–9010, 1993.; Kulmala, M., Vehkamäki, H., Petäjä, T., Dal Maso, M., Lauri, A., Kerminen, V.-M., Birmili, W., and McMurry, P. H.: Formation and growth rates of ultrafine atmospheric particles: a review of observations, J. Aerosol Sci., 35, 143–176, 2004.; Kulmala, M., Riipinen, I., Sipilä, M., Manninen, H. E., Petäjä, T., Junninen, H., Dal Maso, M., Mordas, G., Mirme, A., Vana, M., Hirsikko, A., Laakso, L., Harrison, R. M., Hanson, I., Leung, C., Lehtinen, K. E. J., and Kerminen, V.-M.: Towards direct measurement of atmospheric nucleation, Science, 318, 89–92, 2007.; Frisch, M. J., Trucks, G. W., Schlegel, H. B., Scuseria, G. E., Robb, M. A., Cheeseman, J. R., Scalmani, G., Barone, V., Mennucci, B., Petersson, G. A., Nakatsuji, H., Caricato, M., Li, X., Hratchian, H. P., Izmaylov, A. F., Bloino, J., Zheng, G., Sonnenberg, J. L., Hada, M., Ehara, M., Toyota, K., Fukuda, R., Hasegawa, J., Ishida, M., Nakajima, T., Honda, Y., Kitao, O., Nakai, H., Vreven, T., Montgomery, J. J. A., Peralta, J. E., Ogliaro, F., Bearpark, M., Heyd, J. J., Brothers, E., Kudin, K. N., Staroverov, V. N., Kobayashi, R., Normand, J., Raghavachari, K., Rendell, A., Burant, J. C., Iyengar, S

 

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