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| ROCHA,FÁBIO R.P.; BATISTA,ALEX D.; MELCHERT,WANESSA R.; ZAGATTO,ELIAS A.G.. |
| 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,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beads; Flow analysis; In-line analyte concentration; In-line sample treatment; Sample clean-up; Solid-phase extraction. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000200803 |
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| GAMA,MARIANA R.; MELCHERT,WANESSA R.; PAIXÃO,THIAGO R.L.C.; ROCHA,FÁBIO R.P.. |
| Abstract: Green Analytical Chemistry (GAC) is a research field that seeks for more sustainable analytical approaches to minimize the toxicity and amounts of wastes without hindering the analytical performance. This is a trend in Analytical Chemistry worldwide and because of the diversity of innovations on this subject, Brazil stands out as the third in the list of the main contributors to GAC, with ca. 11.2% of the published articles. Significant innovations and interesting applications in several fields have been presented and Brazil is continuously moving from Chemistry to Green Chemistry also in the Analytical Chemistry field. Selected contributions for sample preparation, spectro- and electroanalysis, separation techniques, chemometrics, and also... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental friendly analytical chemistry; Green chemistry; Miniaturization; Microextractions; Reagentless procedures. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000200403 |
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