title: Pulsed flows in flow analysis: Potentialities, limitations and applications.
abstract: 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.
authors.affiliation: Faculty of Chemistry, Universidad de la República, Montevideo, Uruguay.
authors.forename: Pablo
authors.initials: P
authors.lastname: González
authors.affiliation: Faculty of Chemistry, Universidad de la República, Montevideo, Uruguay.
authors.forename: Moisés
authors.initials: M
authors.lastname: Knochen
authors.affiliation: Centre for Nuclear Energy in Agriculture, University of Sao Paulo, Piracicaba, SP, Brazil.
authors.forename: Milton K
authors.initials: MK
authors.lastname: Sasaki
authors.affiliation: Centre for Nuclear Energy in Agriculture, University of Sao Paulo, Piracicaba, SP, Brazil. Electronic address: ezagatto@cena.usp.br.
authors.forename: Elias A G
authors.initials: EAG
authors.lastname: Zagatto
mesh_terms: D017022:Flow Injection Analysis / Q000295:instrumentation / Q000379:methods
keywords: Flow analysis; Multi-pumping flow systems; Pulsed flows; Solenoid pumps