Pulsed flows in flow analysis: Potentialities, limitations and applications

Autor(es)

Gonzalez, Pablo ^[1] ; Knochen, Moises ^[1] ; Sasaki, Milton K. ^[2] ; Zagatto, Elias A. G. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Republica, Fac Chem, Montevideo - Uruguay

^[2] Univ Sao Paulo, Ctr Nucl Energy Agr, Piracicaba, SP - Brazil

• Tipo de documento: Artigo de Revisão
• Fonte: Talanta; v. 143, p. 419-430, OCT 1 2015.
• Citações Web of Science: 23

Resumo

In flow analysis, use of a steady and pulseless flow was considered essential for ensuring a reproducible handling of the flowing sample. To this end, peristaltic and syringe pumps have been the propelling device in the vast majority of the flow analysers. Recently, the number of applications involving pulsed flow has been increasing. Most of them refer to use of solenoid pumps, the essence of the so-called multi-pumping flow systems. This review critically discusses the characteristics, potentialities and limitations of the pulsed flow systems, emphasizing the main advantageous characteristics of the streams involved, such as high radial mass transference and good Mixing of the fluids. Diverse contributions ranging from instrumentation development to analytical applications are presented. (C) 2015 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 11/14413-0 - Comparação entre analisadores com fluxo laminar ou pulsado e reagentes imobilizados: aplicação a amostras de relevância farmacêutica, agronômica e/ou ambiental
• Beneficiário: Milton Katsumi Sasaki
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 11/23498-9 - Sistemas avançados de análises químicas em fluxo: aplicações nas áreas tecnológica, agronômica e ambiental
• Beneficiário: Elias Ayres Guidetti Zagatto
• Modalidade de apoio: Auxílio à Pesquisa - Temático