Separation of porphyrins by counter-current distribution.

  title={Separation of porphyrins by counter-current distribution.},
  author={Sam Granick and L. Bogorad},
  journal={The Journal of biological chemistry},
  volume={202 2},
The recent development by Craig (l-3) of an all-glass machine for liquidliquid counter-current fractionation makes possible the application of his method to the separation of porphyrins which cannot readily be separated by the sensitive Willstatter “HCl number” method. In this paper we have studied the application of the Craig method to the separation of a mixture of three known porphyrins, using the Willstiitter system of aqueous HCl and ether. The principle of separating porphyrins by liquid… CONTINUE READING

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