dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorCastro, SSL
dc.creatorBalbo, V. R.
dc.creatorBarbeira, PJS
dc.creatorStradiotto, Nelson Ramos
dc.date2014-05-20T15:25:28Z
dc.date2016-10-25T17:59:57Z
dc.date2014-05-20T15:25:28Z
dc.date2016-10-25T17:59:57Z
dc.date2001-08-30
dc.date.accessioned2017-04-05T23:52:32Z
dc.date.available2017-04-05T23:52:32Z
dc.identifierTalanta. Amsterdam: Elsevier B.V., v. 55, n. 2, p. 249-254, 2001.
dc.identifier0039-9140
dc.identifierhttp://hdl.handle.net/11449/35888
dc.identifierhttp://acervodigital.unesp.br/handle/11449/35888
dc.identifier10.1016/S0039-9140(01)00407-6
dc.identifierWOS:000171174600004
dc.identifierhttp://dx.doi.org/10.1016/S0039-9140(01)00407-6
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/879513
dc.descriptionThe PB film-modified electrode was used as an amperometric detector for flow injection analysis of ascorbic acid. The modified electrode detector showed good sensitivity, stability and reproducibility. The calibration curve for ascorbic acid was linear over the concentration range from 5.0 x 10(-6) to 1.0 x 10(-3) mol l(-1) with a slope of 19.9 mA mol(-1) per litre and a correlation coefficient of 0.999. The detection limit of this method was 2.49 x 10(-6) mol l(-1). The relative standard deviation of six replicate injections of 2.5 x 10(-4) mol l(-1) ascorbic acid was 2.5%. The results obtained for ascorbic acid determination in pharmaceutical products are in good agreement with those obtained by using the procedure involving the reaction between triiodide and ascorbic acid. (C) 2001 Elsevier B.V. B.V. All rights reserved.
dc.languageeng
dc.publisherElsevier B.V.
dc.relationTalanta
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectPrussian Blue
dc.subjectmodified electrode
dc.subjectascorbic acid
dc.subjectflow system
dc.subjectamperometric detector
dc.titleFlow injection amperometric detection of ascorbic acid using a Prussian Blue film-modified electrode
dc.typeOtro


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