Fractionation of naturally occurring lecithins according to degree of unsaturation by thin-layer chromatography

Fractionation of naturally occurring lecithins according to degree of unsaturation by thin-layer chromatography.

Quantitative Two-dimensional Thin-layer Chromatography of Naturally Occurring Phospholipids.

Fractionation of Cholesterol Esters by Thin-layer Chromatography.

Quantitative recovery of lecithins after argentation chromatography on thin layers.

The lecithins of rat liver are resolved into three fractions by chromatography on a thin layer of silica gel impregnated with silver nitrate. Each of these fractions is placed in a small column containing a cation-exchange resin, and the lecithins are eluted free from silver nitrate. Recoveries average 96%.

Determination of carotenes by thin-layer chromatography.

The carotenoids of yellow, red and tangerine tomato fruits were separated and identified by thin-layer chromatography (TLC). β-carotene is extracted with a mixture content hexan and acetone. The various systems of adsorbents and solvents for TLC of carote and tomato carotenes were examined, and it was revealed that the most suitable TLC system for separation and identification was silica gel pl...