Cromatografia em camada delgada acoplada a voltametrias cíclica e de pulso diferencial na análise de ácido rosmarínico de Rosmarinus officinalis Linné (Alecrim)
Guardat en:
| Autor principal: | |
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| Data de publicació: | 2010 |
| Format: | Master thesis |
| Idioma: | por |
| Font: | Repositório Institucional da UFG |
| Download full: | http://repositorio.bc.ufg.br/tede/handle/tde/2094 |
Sumari: | This study shows a solid-state electroanalytical method for identification and quantification of rosmarinic acid (RA), a phytoantioxidant of great interest for its therapeutical advantages and applicability in food, cosmetics and pharmaceuticals areas; after it had been isolated from Rosmarinus officinalis Linné (rosemary) samples through thin layer chromatography (TLC), then the silica containing the isolated analyte (chromatographic stain) scraped from chromatographic plates was used to prepare carbon paste electrodes, which were subjected to analysis by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The proposed method showed excellent analytical potential, low cost, speed, ease of implementation and linearity, which can also be applied to other phytoantioxidants in quality control practices of herbal drugs, contributing to the evaluation and quality assurance of them. |