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

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Summary

A method for semiquantitative determination of water-soluble vitamins such as thiamin hydrochloride, riboflavin, pyridoxine, choline chloride,p-aminobenzoic acid, cyanocobalamine, nicotinic acid and ascorbic acid 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 together with comparison of the color intensity of a “circular spot” with that of sensitivity standard. The accuracy of the method is ± 5%. The usefulness of the procedure has been illustrated by determining the water-soluble vitamins from multi-vitamin tablets and injections.

Zusammenfassung

Eine Methode zur halbquantitativen Bestimmung wasserlöslicher Vitamine wie Thiaminhydrochlorid, Riboflavin, Pyridoxin, Cholinchlorid,p-Aminobenzoesäure, Cyanokobalamin, Nikotinsäure und Ascorbinsäure wurde beschrieben. Sie beruht auf der Herstellung von Kreisflecken oder Ringen im Wege der Dünnschichtchromatographie. Empfindliche und spezifische Reaktionen dienen zum Vergleich der Farbintensität mit Standardlösungen. Die Genauigkeit beträgt etwa ±5%. Das Verfahren wurde an Multivitamintabletten und Injektionslösungen geprüft.

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References

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Hashmi, MuH., Chughtai, F.R. & Chughtai, M.I.D. Semiquantitative determination of water-soluble vitamins by circular thin-layer chromatography. Mikrochim Acta 57, 951–955 (1969). https://doi.org/10.1007/BF01219235

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  • DOI: https://doi.org/10.1007/BF01219235

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