Study on the chemical character of water soluble organic compounds in fine atmospheric aerosol at the Jungfraujoch

Z. Krivácsy, A. Gelencsér, G. Kiss, E. Mészáros, A. Molnár, A. Hoffer, T. Mészáros, Z. Sárvári, D. Temesi, B. Varga, U. Baltensperger, S. Nyeki, E. Weingartner

Research output: Contribution to journalArticle

155 Citations (Scopus)

Abstract

In this study the chemical nature of the bulk of water soluble organic compounds in fine atmospheric aerosol collected during summer 1998 at the Jungfraujoch. Switzerland (3580 m asl) is characterised. The mass concentration of water soluble organic substances was similar to those of major inorganic ions, and the water soluble organic matter was found to be composed of two main fractions: (i) highly polyconjugated, acidic compounds with a varying degree of hydrophobicity and (ii) slightly polyconjugated, neutral and very hydrophilic compounds. The contribution of both fractions to the total water soluble organic carbon was about 50%. Separation into individual components was impossible either by HPLC or capillary electrophoresis which indicates the presence of a high number of chemically similar but not identical species. Results obtained by ultrafiltration and HPLC-MS have shown that the molecular weights are of the order of several hundreds. Most of the protonation constants for the acidic compounds determined by capillary electrophoresis were in the range 104-107.

Original languageEnglish
Pages (from-to)235-259
Number of pages25
JournalJournal of Atmospheric Chemistry
Volume39
Issue number3
DOIs
Publication statusPublished - 2001

Fingerprint

Atmospheric aerosols
Organic compounds
organic compound
aerosol
Capillary electrophoresis
Water
electrokinesis
water
Protonation
hydrophobicity
Ultrafiltration
Hydrophobicity
Organic carbon
ultrafiltration
Biological materials
Molecular weight
organic carbon
Ions
organic matter
chemical

Keywords

  • Acidity
  • Atmospheric aerosol
  • Group separation
  • High-alpine site
  • Water soluble organic substances

ASJC Scopus subject areas

  • Atmospheric Science
  • Environmental Science(all)
  • Environmental Chemistry

Cite this

Study on the chemical character of water soluble organic compounds in fine atmospheric aerosol at the Jungfraujoch. / Krivácsy, Z.; Gelencsér, A.; Kiss, G.; Mészáros, E.; Molnár, A.; Hoffer, A.; Mészáros, T.; Sárvári, Z.; Temesi, D.; Varga, B.; Baltensperger, U.; Nyeki, S.; Weingartner, E.

In: Journal of Atmospheric Chemistry, Vol. 39, No. 3, 2001, p. 235-259.

Research output: Contribution to journalArticle

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AU - Hoffer, A.

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