Solid-phase extractions in flow analysis
Document title: Solid-phase extractions in flow analysis
Journal: Anais da Academia Brasileira de Ciencias
Database: PERIÓDICA
System number: 000418370
ISSN: 0001-3765
Authors: 1
2
2
1
Institutions: 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
Year:
Season: Abr
Volumen: 90
Pages: 803-824
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, analítico
English abstract 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
Disciplines: Química
Keyword: 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
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