Revista: | Anais da Academia Brasileira de Ciencias |
Base de datos: | PERIÓDICA |
Número de sistema: | 000418370 |
ISSN: | 0001-3765 |
Autores: | Rocha, Fabio R.P1 Batista, Alex D2 Melchert, Wanessa R2 Zagatto, Elias A.G1 |
Instituciones: | 1Universidade de Sao Paulo, Centro de Energia Nuclear na Agricultura, Piracicaba, Sao Paulo. Brasil 2Universidade de Sao Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Piracicaba, Sao Paulo. Brasil |
Año: | 2018 |
Periodo: | Abr |
Volumen: | 90 |
Paginación: | 803-824 |
País: | Brasil |
Idioma: | Inglés |
Tipo de documento: | Artículo |
Enfoque: | Experimental, analítico |
Resumen en inglés | Coupling solid-phase extraction (SPE) to flow systems has promoted a synergistic development. Whereas SPE mechanization leads to improved precision and higher sample throughput, as well as diminishes systematic errors and contamination risks, analyte concentration and separation from the sample matrix provides a remarkable impact on detectability and selectivity in flow analysis. Historical aspects, main cornerstones, tips for system design, and recent applications are critically reviewed, in the context of analyte(s) separation/concentration, sample clean-up, and release of sorbed chemical species involving both packed (e.g. mini-columns, cartridges, and disks) or fluidized (e.g. beads and magnetic materials) particles. Novel (bio)sorbents, selective synthetic materials, and stationary phases for low-pressure chromatography are also discussed. Moreover, the feasibility of SPE for sample treatment before chromatographic separation, as well as the exploitation of direct measurements on the solid phase (optosensing) are emphasized |
Disciplinas: | Química |
Palabras clave: | Química analítica, Perlas, Análisis de flujo, Concentración, Analitos en línea, Tratamiento, Muestras en línea, Limpieza, Extracción de fase sólida |
Keyword: | Analytical chemistry, Beads, Flow analysis, Concentration, In-line analyte, In-line sample treatment, Sample clean-up, Solid phase extraction |
Texto completo: | Texto completo (Ver PDF) |