Summary
For direct aqueous injection gas-chromatographic analysis of polar compounds present in aqueous solutions sorbents containing conventional stationary phases and potassium fluoride crystal hydrate are proposed. On such sorbents polar compounds elute with narrow symmetrical zones under gentle chromatographic conditions. In such sorbents KF.2H2O mainly deactivates the surface of the solid support. The polarity of these sorbents is compared with the polarity of molten potassium fluoride dihydrate and conventional stationary phases.
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Polanuer, B. Direct aqueous injection gas chromatographic analysis of polar compounds using sorbents containing potassium fluoride dihydrate. Chromatographia 33, 279–283 (1992). https://doi.org/10.1007/BF02276195
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DOI: https://doi.org/10.1007/BF02276195