Reverse Phase Thin Layer Chromatography of Barbiturates

Identification of Barbiturates by Thin-layer Chromatography.

in cases of overdose and identification of the actual barbiturate concerned may be impossible because of the closely similar Rf values of this group. Jackson (1960) described treatment with hot sulphuric acid before paper chromatography to distinguish between barbiturates of similar chromatographic mobility. The inert nature of the silica gel supporting medium used in thin-layer separations ena...

Thin-Layer (Planar) Chromatography

phy 665: 243. Junk GA, Richard JJ, Grieser MD et al. (1974) Use of Macroreticular resins in the analysis of water for trace organic contaminants. Journal of Chromatography 99: 745. Puig D and BarceloH D (1995) Off-line and on-line solidphase extraction followed by liquid chromatography for the determination of priority phenols in natural waters. Chromatographia 40: 435. Puig D and BarceloH D (1...

Thin-Layer (Planar) Chromatography

Synthetic dyes comprise a large group of organic, organic salt and organometallic compounds which number in the thousands. Most individual dyes are assigned colour index (CI) numbers which helps to identify structure and properties as well as identity where a series of names have been used by the manufacturers for the same dye. Pigments are also listed and can be either organic or inorganic in ...

Thin-layer chromatography.

Reversed - phase partithn thin - layer chromatography of rat liver

A PREVIOUS COMMUNICATION described the separation of rat liver lecithin into four main fractions by TLC on silica gel plates impregnated with silver nitrate (1). GLC analysis revealed that approximately 50% of the fatty acids in each of the four fractions, here designated as A, B, C, and D, was made up of two saturated fatty acids, viz., palmitic and stearic. In fraction A the remaining 50% con...