Abstract
The dependence of the variations in the differential molar free energy of sorption of polyfluorocarboxamides RFC(O)NR2 (RF = CF3(CF2) i ,i=0 to 5, R=H or Me) on capillary columns on the molecular structure of the amides, the temperature of analysis, and the nature of the stationary phases (OV-101, XE-60, and PEG-40M) were investigated by GLC. The peculiarities of the variation of the sorption characteristics of amides in XE-60 and PEG-40M polar phases, which cause the inversion of the order of retention of the members of pseudohomologous series, were found.
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D. N. Grigor'eva, R. V. Golovnya, and A. V. Vasil'ev,Zh. Anal. Khim, 1987,44, 1274 [J. Anal. Chem., 1987,44 (Engl. Transl.)].
E. P. Promyshlennikova, V. E. Kirichenko, K. I. Pashkevich, D. N. Grigor'eva, and R. V. Golovnya,Izv. Akad. Nauk, Ser. Khim., 1993, 2051 [Russ. Chem. Bull., 1993,42, 1963 (Engl. Transl.)].
E. P. Promyshlennikova, V. E. Kirichenko, K. I. Pashkevich, D. N. Grigor'eva, and R. V. Golovnya,Zh. Anal. Khim, 1994,51 (in press) [J. Anal. Chem., 1994,51 (Engl. Transl.)].
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Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 868–871, May, 1994.
We are grateful to R. V. Golovnya and D. N. Grigor'eva (Institute of Food Substances of the RAS, Moscow) for their participation in the discussion of the results obtained.
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Kirichenko, V.E., Promyshlennikova, E.P. & Pashkevich, K.I. Sorption characteristics of polyfluorocarboxamides. Russ Chem Bull 43, 812–815 (1994). https://doi.org/10.1007/BF00717344
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DOI: https://doi.org/10.1007/BF00717344