Separation of the isomers of tocopherol by liquid/solid chromato

Details Separation of the isomers of tocopherol by liquid/solid chromato Separation of the isomers of tocopherol by liquid/solid chromato

1977-05-13

1978-10-24

Chan, Nicky

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

210 31C, C07D31172

Patent

active

041220943

ABSTRACT:
Methods of separating the alpha-, beta-, gamma-, and delta-tocopherol isomers from mixtures containing these isomers by liquid/solid chromatography techniques using a liquid phase comprising chloroform substantially free of ethanol are disclosed. These methods are particularly suitable for the quantitative determination of these isomers in vegetable oils and in margarines, and for the isolation of substantially pure isomeric forms from naturally occurring mixtures and from the by-products of crude edible oil refinement.

REFERENCES:
patent: 2350713 (1944-06-01), Baxter et al.
patent: 3122565 (1964-02-01), Kijima et al.
patent: 3153055 (1964-10-01), Brown et al.
Cavins et al., Cereal Chem., 51, 605, (1974).
Whittle et al., Analyst, 92, 423, (1967).

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