Abstract
SORPTION on cation exchange resins allows the complete separation of some coumarins1 in dilute solution using a simple technique. A column of the styrene-divinylbenzene copolymer-type sulphonic acid cation exchange resin, Dowex 50 W-X 4 (− 100, + 200 mesh, Dow Chemical Co.), in the hydrogen form (bed length, 53 cm; bed volume, 131 c.c.) has been used for this purpose.
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References
Shah, R. S., and Bafna, S. L., Nature, 208, 76 (1965).
Shah, R. S., and Bafna, S. L., Ind. J. Chem., 1, 400 (1963).
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PATEL, D., BAFNA, S. Separation of Coumarins. Nature 211, 963 (1966). https://doi.org/10.1038/211963a0
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DOI: https://doi.org/10.1038/211963a0
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