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SO2 induced liberation of halide anions from organics

100%

Bronikowski T. , Pasiuk-Bronikowska W. , Ulejczyk M.

1999

tom 25

nr 2

Chemical transformations in atmospheric waters

100%

Pasiuk-Bronikowska W.

1999

tom 25

nr 1

Structural characterization of fatty acid films on rain water: a scaling approach using physical attributes

100%

Mazurek A. Z. , Pogorzelski S. J. , Kogut A. D.

tom 15

nr 6

A complete compositional or structural description of naturally-occurring surfactants on rain water is not currently feasible. A main limitation of previous work has been the lack of means for correlating force-area characteristics with the chemical makeup of the films. Instead of analyzing the chemical composition of rain water film-forming organics, it is postulated here to introduce the novel scaling procedures (2D virial equation of state and 2D polymer film scaling theory) applied to the surface pressure-area (n-A) isotherms and surface pressure- temperature (n-T) isochors and resulting from generalized physical formalisms modified to a multicomponent surfactant film. A set of the introduced structural film state parameters (n, r, Alim, Eisoth, y, R, Mw, Ps) could become sensitive indicators for surface-active source-specific organic matter pathway tracing, where the measurement of surfactant concentration and chemical analyses are avoided. The concept is quantified using the Langmuir trough film and disdrometer data on a set of rain water events observed in Gdańsk, Poland in May 2002.