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Semiquantitative determination of fat-soluble vitamins by circular thin-layer chromatography

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Summary

A method for semiquantitative determination of fat-soluble vitamins such as vitamin A, D2, D3, E (α-tocopherol), K1 and K3 is described. It involves making “circular spots” or rings on chromatoplates using circular thin-layer Chromatographic apparatus. The method is based on sensitivity and specificity of spot reactions and the comparison of the color intensity of a “circular spot” with that of sensitivity standard. The accuracy of the method is ± 6%. The usefulness of the procedure has been illustrated by determining the fat-soluble vitamins from multi-vitamin tablets.

Zusammenfassung

Ein Verfahren zur halbquantitativen Bestimmung fettlöslicher Vitamine (A, D2, D3, E, k1 und K3) wurde beschrieben. Es beruht auf der Herstellung kreisförmiger Flecken oder Ringe durch Dünnschicht-Ringchromatographie und auf der Empfindlichkeit und Spezifität von Tüpfelreaktionen. Die Farbintensität der Ringe wird mit der von Standardproben verglichen. Die Genauigkeit beträgt ± 6%. Die Methode wurde an der Bestimmung der fettlöslichen Vitamine in Multivitamintabletten überprüft.

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References

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Hashmi, M.H., Chughtai, F.R. & Chughtai, M.I.D. Semiquantitative determination of fat-soluble vitamins by circular thin-layer chromatography. Mikrochim Acta 57, 53–58 (1969). https://doi.org/10.1007/BF01216664

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  • DOI: https://doi.org/10.1007/BF01216664

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