Mathematical models of solute retention in gas chromatography as sources of thermodynamic data. Part II. Aldehydes as the test analytes

• Autorzy: Ciążyńska-Halarewicz K. , Kowalska T.
• Języki publikacji: EN

Abstrakty

EN

Direct determination of thermodynamic data has always been a complicated and troublesome experimental task; gas chromatography is among long-established working tools well suited to performing this particu-lar task indirectly [1-11]. This paper is the next step in research introduced in other publications [12,13]. Eight different mathematical models (coupling gas chromatographic retention data of analytes with their physicochemical properties) were used to determine the molar heat of vaporization, ΔHvap, and the chemical potential for partitioning of one methylene group between the two phases of the chromatographic system, Δμp(CH2), for consecutive members of a group of analytes, this time the aldehydes. The experiment was performed on low- and medium-polarity stationary phases in the temperature range 323 to 423 K.

• Wydawca: University of Silesia in Katowice ; Akademiai Kiado
• Czasopismo: Acta Chromatographica
• Rocznik: 2003
• Tom: No. 13
• Strony: 81--94
• Opis fizyczny: Bibliogr. 21 poz., tab.

Twórcy

autor

Ciążyńska-Halarewicz K.

• Institute of Chemistry, Silesian University, 9 Szkolna Street, 40-006 Katowice, Poland

autor

Kowalska T.

• Institute of Chemistry, Silesian University, 9 Szkolna Street, 40-006 Katowice, Poland

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