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Journal ArticleDOI

Die Dünnschicht-Chromatographie auf dem Fettgebiet VI: Die Hydrierung und Bromierung auf der Platte†

H. P. Kaufmann, +2 more
- 01 Jan 1962 - 
- Vol. 64, Iss: 1, pp 1-5
TLDR
In this paper, it is shown that with the help of these processes, it is possible to separate the critical pairs of fatty acids and to identify the individual components of triglycerides.
Abstract
Es wird uber Hydrierungs- und Bromierungs-Reaktionen berichtet, die direkt auf den dunnschicht-chromatographischen Platten durchgefuhrt werden, indem man das Palladium als Katalysator auf der Platte erzeugt bzw. das Brom in dem Fliesmittel lost. Mit Hilfe dieser Reaktionen ist est moglich, kritische Paare von Fettsauren zu trennen und einzelnen Komponenten zu identifizieren. Die Trennung der Brom-Derivate anstelle der ursprunglich ungesattigten Verbindungen fuhrte auch bei der Analyse der Triglyceride zu weiteren Fortschritten. Thin Layer Chromatography in the Field of Fats VI: Hydrogenation and Bromination on the Plate Hydrogenation and bromination employing palladium as catalyst on the plate and bromine dissolved in the mobile phase are carried out directly on the thin layer chromatographic plates. With the help of these processes it is possible to separate the critical pairs of fatty acids and to identify the individual components. The separation of bromo-derivatives instead of the original unsaturated compounds leads also to further progress in the analysis of triglycerides.

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Citations
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Journal ArticleDOI

Thin-layer chromatography of lipids

TL;DR: Thin-Layer Chromatography as an Analytical Tool as a Preparative Tool and Qualitative Analysis for Quantitative Analysis.
Journal ArticleDOI

The quantitative analysis of triglyceride mixtures by thin layer chromatography on silica impregnated with silver nitrate

TL;DR: In this paper, a procedure involving thin layer chromatography on silica impregnated with silver nitrate is described, which makes possible the separation of synthetic and natural glyceride mixtures into classes according to their degree of unsaturation, and within those classes the resolution of certain isomeric unsaturated glycerides.
Journal ArticleDOI

The analysis of mixtures of animal and vegetable fats. v. separation of sterol acetates by thin-layer chromatography in reversed-phase systems and on silica gel g-silver nitrate layers.

TL;DR: The above chromatographic analyses can be applied to the identification of unknown sterols isolated from natural sources, e.g. coconut fat and Asterina pectinifera.
Book ChapterDOI

[1] Thin-layer chromatography of steroids, sterols, and related compounds

TL;DR: In this paper, practical considerations concerning the various techniques that may be applicable to the separation of individual steroids by thin-layer chromatography (TLC) have been discussed, including the adsorbent, the preparation of the layer, and the type of solvent system to be employed for development of the chromatoplates.
References
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Journal ArticleDOI

Fractionation of fats, oils, and waxes on thin layers of silicic acid

TL;DR: Adsorption chromatography on thin layers of silicic acid or alumina provides a new and highly efficient analytical tool for the rapid separation of lipids according to classes of compounds as discussed by the authors.
Journal ArticleDOI

Die Dünnschicht‐Chromatographie auf dem Fettgebiet I: Trennung von Modell‐Mischungen

H. P. Kaufmann, +1 more
- 01 Jan 1960 - 
TL;DR: The thin-layer chromatography makes possible the separation of the lipids in the different groups of substances and their qualitative analysis can be carried out in a short time as mentioned in this paper, and it is possible to investigate some chemical processes, such as oxydation-, saponification processes etc.
Journal ArticleDOI

Determination of mono-, di-, and triglycerides by molecular distillation and thin-layer chromatography.

TL;DR: In this paper, the analysis of mixtures of mono-, di-, and triglycerides by molecular distillation and thin-layer chromatography is described, which can be carried out on a micro-scale with a high degree of accuracy and precision.
Journal ArticleDOI

Der analytische Nachweis synthetischer Antioxydantien in Speisefetten II: Trennung und Identifizierung synthetischer Antioxydantien durch Dünnschicht‐Chromatographie

A. Seher
- 01 Jan 1959 - 
TL;DR: The use of phosphomolybdic acid for colouring the analysed substances makes the method very sensitive as mentioned in this paper and is not affected by the presence of other natural products in oils.
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