Spectrophotometric determination of polycylic aromatic hydrocarbons separated by thin-layer chromatography, and evaluation of the light sensitivity of hydrocarbons spots

✍ Scribed by Jørgen Lam; Arne Berg

• Publisher: Elsevier Science
• Year: 1965
• Tongue: English
• Weight: 427 KB
• Volume: 20
• Category: Article
• ISSN: 1873-3778
• DOI: 10.1016/s0021-9673(01)97385-6

✦ Synopsis

Separation of imidazoles by cellluiose thin-layer chromatagraphy

In a previous communication1 the separation of imidazoles on alumina and silica thin-layer chromatoplates is described. The use of thin-layer cellulose provides a useful supplement to this technique, particularly for the separation of imidazole-"'y carboxylic acids, ':;:

Compact spots are obtained in acidic solvents but some tailing is evident with basic solvent systems. As with thin-layer chromatography of imidazoles on alumina,