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Determination of the chemical oxygen demand (COD) using a copper electrode: a clean alternative method

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dc.contributor.authorSilva, Claudineia R.
dc.contributor.authorConceicao, Cleone D. C.
dc.contributor.authorBonifacio, Viviane G.
dc.contributor.authorFatibello Filho, Orlando
dc.contributor.authorTeixeira, Marcos F. S. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.date.accessioned2014-05-20T13:23:02Z
dc.date.available2014-05-20T13:23:02Z
dc.date.issued2009-05-01
dc.description.abstractA clean alternative method for the determination of chemical oxygen demand (COD) was developed using a copper electrode as an electrocatalytic sensor. The measuring principle is based on oxidation current of organic compounds in the wastewater. The effects of important experimental conditions, such as electrolytic solution concentration and potential scan rate, on analytical performance have been investigated. Analytical linear range of 53.0-2,801.4 mg l(-1) COD with detection limit of 20.3 mg l(-1) COD was achieved. The procedure was successfully applied to the COD determination in wastewater from soft industries. The results obtained using the proposed method were in good agreement with those obtained using the conventional (i.e., dichromate) COD method. In this fashion, the COD value of a sample can be determined in a simple, rapid, accurate manner, and the end products do not contain toxic metals.en
dc.description.affiliationUniv Estadual Paulista, Fac Ciencias & Tecnol, Dept Fis Quim & Biol, BR-19060900 Presidente Prudente, SP, Brazil
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Dept Quim, BR-13560970 São Carlos, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Ciencias & Tecnol, Dept Fis Quim & Biol, BR-19060900 Presidente Prudente, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent665-669
dc.identifierhttp://dx.doi.org/10.1007/s10008-008-0580-9
dc.identifier.citationJournal of Solid State Electrochemistry. New York: Springer, v. 13, n. 5, p. 665-669, 2009.
dc.identifier.doi10.1007/s10008-008-0580-9
dc.identifier.issn1432-8488
dc.identifier.urihttp://hdl.handle.net/11449/6869
dc.identifier.wosWOS:000263429100003
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofJournal of Solid State Electrochemistry
dc.relation.ispartofjcr2.509
dc.relation.ispartofsjr0,661
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectCODen
dc.subjectCopper electrodeen
dc.subjectVoltammetric determinationen
dc.subjectGreen chemistryen
dc.titleDetermination of the chemical oxygen demand (COD) using a copper electrode: a clean alternative methoden
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
dspace.entity.typePublication
unesp.author.orcid0000-0002-6923-2227[4]
unesp.author.orcid0000-0001-9355-2143[5]
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências e Tecnologia, Presidente Prudentept
unesp.departmentFísica, Química e Biologia - FCTpt

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Presidente Prudente - FCT - Faculdade de Ciências e Tecnologia