| Revista: | Quimica nova |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000313426 |
| ISSN: | 0100-4042 |
| Autors: | Vieira-Junior, Gerardo Magela1 Carvalho, Adonias Almeida Gonzaga, Wellington de Abreu Chaves, Mariana H |
| Institucions: | 1Universidade Federal do Piaui, Departamento de Quimica, Teresina, Piaui. Brasil |
| Any: | 2007 |
| Període: | Abr |
| Volum: | 30 |
| Número: | 2 |
| Paginació: | 491-493 |
| País: | Brasil |
| Idioma: | Portugués |
| Tipo de documento: | Artículo |
| Enfoque: | Descriptivo, aplicado |
| Resumen en inglés | The use of natural products to demonstrate the silica gel column chromatography technique is proposed in the present article. It describes the separation of the triterpenes alpha- and beta-amirin from the diol breine and maniladiol, obtained from almécega resin (Protium heptaphyllum March.). The experiment uses an accessible material, was accomplished in 4 h, and can be applied with success an the experimental course of organic chemistry for undergraduate students |
| Disciplines | Química |
| Paraules clau: | Química orgánica, Experimentos de laboratorio, Resinas vegetales, Cromatografía en columna, Alfa-amirina, Beta-amirina, Protium heptaphyllum |
| Keyword: | Chemistry, Organic chemistry, Laboratory experiments, Plant resins, Column chromatography, Alpha-amyrin, Beta-amyrin, Protium heptaphyllum |
| Text complet: | Texto completo (Ver HTML) |
