TLC of p-Nitroanilines and Their Analogues with Cyclodextrins in the Mobile Phase

Autor: Kathleen T. Crago, Tiffany Hollin, Michael Young, Ieva R. Politzer
Rok vydání: 1995
Předmět:
Zdroj: Journal of Chromatographic Science. 33:316-320
ISSN: 1945-239X
0021-9665
DOI: 10.1093/chromsci/33.6.316
Popis: The addition of alpha-, beta-, gamma-, and hydroxypropyl-beta-cyclodextrins to aqueous mobile phases can be used to enhance the migration of p-nitroanilines and their analogues on thin-layer chromatography. Urea, which is used to solubilize the cyclodextrins in aqueous solutions, is also found to increase the migration of these compounds. The equilibrium binding constants for the solute-cyclodextrin complexes formed in the mobile phase are determined. The results obtained using either silica gel or polyamide plates are similar.
Databáze: OpenAIRE