On-line micellar-enhanced spectrofluorimetric determination of rhodamine dye in cosmetics
A simple FI-fluorimetric analytical methodology for the continuous and sequential determination of rhodamine B (RhB) in cosmetic products has been developed and evaluated in terms of sensibility and selectivity. The influence of several surfactant solutions on RhB fluorescence signal has been studie...
| Autores: | , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2008 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/93010 |
| Acceso en línea: | http://hdl.handle.net/11336/93010 |
| Access Level: | acceso abierto |
| Palabra clave: | COSMETICS FLOW INJECTION SPECTROFLUORIMETRY MICELLES RHODAMINE B https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| Sumario: | A simple FI-fluorimetric analytical methodology for the continuous and sequential determination of rhodamine B (RhB) in cosmetic products has been developed and evaluated in terms of sensibility and selectivity. The influence of several surfactant solutions on RhB fluorescence signal has been studied; particular attention was paid in the aggregation behavior of RhB-SDS system. Linear response has been obtained in the range of 1.6 × 10-9 and 1 × 10-6 mol L-1, with a detection limit of 5 × 10-10 mol L-1. The novel technique provides a simple dissolution of sample, on-line filtration with sampling rate higher than 100 samples h-1 and has been satisfactorily applied to the RhB determination in commercial lipsticks. |
|---|