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

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade Federal de São Carlos (UFSCar)
dc.date.accessioned2014-05-20T13:23:02Z
dc.date.accessioned2022-10-05T13:09:33Z
dc.date.available2014-05-20T13:23:02Z
dc.date.available2022-10-05T13:09:33Z
dc.date.created2014-05-20T13:23:02Z
dc.date.issued2009-05-01
dc.identifierJournal of Solid State Electrochemistry. New York: Springer, v. 13, n. 5, p. 665-669, 2009.
dc.identifier1432-8488
dc.identifierhttp://hdl.handle.net/11449/6869
dc.identifier10.1007/s10008-008-0580-9
dc.identifierWOS:000263429100003
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3883916
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.
dc.languageeng
dc.publisherSpringer
dc.relationJournal of Solid State Electrochemistry
dc.relation2.509
dc.relation0,661
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectCOD
dc.subjectCopper electrode
dc.subjectVoltammetric determination
dc.subjectGreen chemistry
dc.titleDetermination of the chemical oxygen demand (COD) using a copper electrode: a clean alternative method
dc.typeArtigo


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