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Flow Analysis: Looking Back and Forward
Rocha
, Fábio
Journal of the Brazilian Chemical Society, 2018-05, Vol.29 (5),
p
.1032-1040
[Periódico revisado por pares]
Sociedade Brasileira de Química
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Título:
Flow Analysis: Looking Back and Forward
Autor:
Rocha
, Fábio
Assuntos:
CHEMISTRY, MULTIDISCIPLINARY
É parte de:
Journal of the Brazilian Chemical Society, 2018-05, Vol.29 (5),
p
.1032-1040
Descrição:
Flow analysis changed significantly the way of performing chemical analysis by (i) mechanization of analytical procedures in a continuous flowing stream with minimal sample intercontamination; (ii) analytical measurements without attaining chemical equilibria, thus increasing the applicability of kinetic methods and allowing the exploitation of non-quantitative processes; (iii) exploitation of concentration gradients and (iv) use of unstable reagents or measurement of unstable products. Flow-based procedures are generally characterized by high sample throughput, improved precision, minimized waste generation, and often better selectivity. The performance of detection systems is usually improved because of the in-line sample conditioning and measurements under reproductive dynamic conditions and timing. However, after achieving several innovations, perspectives for further developments have been questioned mainly because of the recent decrease in the number of publications on flow analysis. The aim of this review is then to discuss the impact of flow-based methods on chemical analysis, emphasizing recent applications and developments, including miniaturization, bioanalysis, microextractions, green analytical chemistry and synergic hyphenation with other techniques and processes. The author's personal view about research perspectives in the field is also presented.
Editor:
Sociedade Brasileira de Química
Idioma:
Inglês;Português
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