Inverse gas chromatographic characterization of Porapak Q as an extractant of pollutants from aqueous media |
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| Authors: | Nagy E Moustafa Doaa S El-Desouki |
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| Institution: | (1) Egyptian Petroleum Research Institut, 11727 Nasr City, Cairo, Egypt |
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| Abstract: | The surface of Porapak Q was characterized by inverse gas chromatography (IGC) carried out by the determination of dispersive
and specific adsorption components of Porapak Q surface, calculating γsd and -ΔH
as parameters, respectively. An interpretation was given based on the chemical structure of Porapak Q. The obtained results
were confirmed through the surface Lewis acidity and basicity constants, K
a and K
b, respectively, correlating well with the determined thermodynamic parameters. |
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| Keywords: | surface characteristics Porapak Q inverse gas chromatography solid-phase extraction |
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