Abstract
New stationary phases for HPLC are obtained via layer-by-layer deposition of polyelectrolytes and studied: (1) silica gel modified layer-by-layer with 6,10-ionene and dextran sulfate (Sorbent 1); (2) silica gel twice subjected to the above modification (Sorbent 2); and (3) silica gel modified with 6,10-ionene, gold nanoparticles, and dextran sulfate (Sorbent 3). The effect the content of the organic solvent in the mobile phase and the concentration and pH of the buffer solution have on the chromatographic behavior of several pharmacologically active nitrogen-containing compounds is studied. The sorbents are stable during the process and allow the effective separation of beta-blockers, calcium channel blockers, alpha-agonists, and antihistamines. A mixture of caffeine, nadolol, tetrahydrozoline, pindolol, orphenadrine, doxylamine, carbinoxamine, and chlorphenamine is separated in 6.5 min on the silica gel modified with 6,10-ionene, gold nanoparticles, and dextran sulfate.
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Original Russian Text © A.N. Ioutsi, E.N. Shapovalova, V.A. Ioutsi, A.G. Mazhuga, O.A. Shpigun, 2017, published in Zhurnal Fizicheskoi Khimii, 2017, Vol. 91, No. 12, pp. 2115–2121.
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Ioutsi, A.N., Shapovalova, E.N., Ioutsi, V.A. et al. Separation of pharmacologically active nitrogen-containing compounds on silica gels modified with 6,10-ionene, dextran sulfate, and gold nanoparticles. Russ. J. Phys. Chem. 91, 2431–2436 (2017). https://doi.org/10.1134/S0036024417120111
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DOI: https://doi.org/10.1134/S0036024417120111