Abstract
Three constructions of the columns of extraction-chromatographic device operating in cyclic mode have been compared. Experiments have been conducted with = shots containing caffeine, coumarin, and salicylic and acetylsalicylic acids using hexane-isopropyl alcohol-water biphase solvent system at a 1 : 1 : 1 ratio, respectively. All columns have demonstrated fairly high effectiveness. The certain advantage of the column with stirrers is the possibility to control contact time of phases.
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Original Russian Text © A.A. Erastov, N.V. Kodin, Yu.A. Zakhodyaeva, A.E. Kostanyan, 2013, published in Khimicheskaya Tekhnologiya, 2013, Vol. 14, No. 10, pp. 631–635.
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Erastov, A.A., Kodin, N.V., Zakhodyaeva, Y.A. et al. Columns for cyclic extraction-chromatographic device. Theor Found Chem Eng 48, 733–736 (2014). https://doi.org/10.1134/S0040579514050042
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DOI: https://doi.org/10.1134/S0040579514050042