Removal of synthetic food dyes in aqueous solution by Octolig®

Autor:	Cheryl H. McCane, Rachael J. Alessio, Dean F. Martin
Rok vydání:	2013
Předmět:	Solutions Chromatography chemistry.chemical_compound Environmental Engineering Sulfonate Aqueous solution chemistry Covalent bond Molecule General Medicine Coloring Agents Silicon Dioxide
Zdroj:	Journal of Environmental Science and Health, Part A. 48:495-500
ISSN:	1532-4117 1093-4529
DOI:	10.1080/10934529.2013.730413
Popis:	We studied six of the seven food dyes commonly used, e.g., FD&C Blue No. 1 and No. 2, Green No. 3, Red No. 3 and No. 40, Yellow No. 5 and No. 6. Quantitative removal was achieved by passage of dyes in aqueous solutions over chromatography columns packed with Octolig®, a polyethylenediimine covalently attached to high-surface-area silica. A structural feature most of the dyes have in common are the presence of sulfonate groups attached to aromatic molecules. Prior studies and the current one indicated that the seventh food dye (Green No. 3) should also be quantitatively removed. Matrix effects were considered, but none were observed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99357000ba6252c50623385e32765d80 https://doi.org/10.1080/10934529.2013.730413 Zobrazit plný text záznamu