Separation by counter‐current distribution of individual molecular species of phospholipids are much improved by the use of CCl4:CH3OH:H2O (62∶33∶5 v/v) for lecithins and of heptane: CH3OH:H2O (50∶47.5∶2.5 v/v) for the methyl esters of the dinitrophenyl derivatives of phosphatidylethanolamines.
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Collins et al. (1971) studied this question.
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