A versatile and pulsation free pneumatic impeller for flow analysis systems Propulsor pneumático versátil e isento de pulsação para sistemas de análise em fluxo

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dc.contributor.authorMatos R.C.
dc.contributor.authorGutz I.G.R.
dc.contributor.authorAngnes L.
dc.contributor.authorFontenele R.S.
dc.contributor.authorPedrotti J.J.
dc.date.accessioned2024-03-13T01:47:00Z
dc.date.available2024-03-13T01:47:00Z
dc.date.issued2001
dc.description.abstractAquarium air pumps are proposed and evaluated as pneumatic liquid propulsion devices for flow injection and continues flow analysis (FIA and CFA) systems. This kind of pump is widely available at a very low cost and it can sustain a pressure around of 4 psi (0.28 bar) indefinitely. By applying this air pressure onto a solution contained in a reservoir flask, it is possible to reach flow rates of up to 12.5 mL min-1 for circuits comprising reactors, made from 0.8 i.d. tubing with a length of 100 cm. The precise adjustment of flow rate below the maximum one can be made with a simplified needle valve or inserting in series a short length of capillary tube. The absence of flow pulsation is a definite advantage in comparison with peristaltic pumps, especially when amperometric detection is elected, as confirmed experimentally in FIA and CF applications.
dc.description.firstpage795
dc.description.issuenumber6
dc.description.lastpage798
dc.description.volume24
dc.identifier.doi10.1590/s0100-40422001000600017
dc.identifier.issn0100-4042
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/38039
dc.relation.ispartofQuimica Nova
dc.rightsAcesso Aberto
dc.subject.otherlanguageAmperometric detection
dc.subject.otherlanguageFlow analysis
dc.subject.otherlanguagePneumatic pump
dc.titleA versatile and pulsation free pneumatic impeller for flow analysis systems Propulsor pneumático versátil e isento de pulsação para sistemas de análise em fluxo
dc.typeArtigo
local.scopus.citations33
local.scopus.eid2-s2.0-0347866963
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0347866963&origin=inward
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