A new approach to flow-batch titration. A monosegmented flow titrator with coulometric reagent generation and potentiometric or biamperometric detection

dc.creatorde Aquino, EV
dc.creatorRohwedder, JJR
dc.creatorPasquini, C
dc.date2006
dc.dateNOV
dc.date2014-11-13T19:49:32Z
dc.date2015-11-26T17:11:11Z
dc.date2014-11-13T19:49:32Z
dc.date2015-11-26T17:11:11Z
dc.date.accessioned2018-03-28T23:59:42Z
dc.date.available2018-03-28T23:59:42Z
dc.identifierAnalytical And Bioanalytical Chemistry. Springer Heidelberg, v. 386, n. 6, n. 1921, n. 1930, 2006.
dc.identifier1618-2642
dc.identifierWOS:000242144000039
dc.identifier10.1007/s00216-006-0815-5
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/76151
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/76151
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/76151
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1281040
dc.descriptionMonosegmented flow analysis (MSFA) has been used as a flow-batch system to produce a simple, robust, and mechanized titrator that enables true titrations to be performed without the use of standards. This paper also introduces the use of coulometry with monosegmented titration by proposing a versatile flow cell. Coulometric generation of the titrand is attractive for titrations performed in monosegmented systems, because the reagent can be added without increasing the volume of sample injected. Also, biamperomeric and potentiometric detection of titration end-points can increase the versatility of the monosegmented titrator. The cell integrates coulometric generation of the titrand with detection of end-point by potentiometry or biamperometry. The resulting titrator is a flow-batch system in which the liquid monosegment, constrained by the interfaces of the gaseous carrier stream, plays the role of a sample of known volume to be titrated. The system has been used for determination of ascorbic acid, by coulometric generation of I-2 with biamperometric detection, and for determination of Fe(II), by coulometric generation of Ce(IV) with potentiometric detection of the end-point, both in feed supplements.
dc.description386
dc.description6
dc.description1921
dc.description1930
dc.languageen
dc.publisherSpringer Heidelberg
dc.publisherHeidelberg
dc.publisherAlemanha
dc.relationAnalytical And Bioanalytical Chemistry
dc.relationAnal. Bioanal. Chem.
dc.rightsfechado
dc.rightshttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.sourceWeb of Science
dc.subjectflow titration
dc.subjectflow-batch
dc.subjectcoulometry
dc.subjectpotentiometry
dc.subjectiron(II)
dc.subjectascorbic acid
dc.subjectmonosegmented system
dc.subjectSpectrophotometric Determination
dc.subjectInjection Analysis
dc.subjectSulfuric-acid
dc.subjectBinary Search
dc.subjectSystem
dc.subjectBases
dc.titleA new approach to flow-batch titration. A monosegmented flow titrator with coulometric reagent generation and potentiometric or biamperometric detection
dc.typeArtículos de revistas


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