Voltammetric determination of 17 alpha-ethinylestradiol hormone in supply dam using BDD electrode

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dc.contributor.authorPerez, Caroline [UNIFESP]
dc.contributor.authorSimões, Fabio Ruiz [UNIFESP]
dc.contributor.authorCodognoto, Lucia [UNIFESP]
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2019-07-22T15:46:50Z
dc.date.available2019-07-22T15:46:50Z
dc.date.issued2016
dc.description.abstractIn this work, a simple method for electroanalytical determination of 17 alpha-ethinylestradiol (EE2) hormone in natural waters was developed using a boron-doped diamond electrode (BDD). The analyses were performed using square wave voltammetry and the parameters were optimized. The results showed a well-defined irreversible oxidation peak (BR buffer 0.1 mol L-1, pH 8.0) at +0.65 V (vs. Ag/AgCl). The voltammetric results showed also that the oxidation process is controlled by adsorption of species and indicated that there are two electrons involved. The obtained analytical curves for 17 alpha-ethinylestradiol presented good linearity in the concentration range 9.9 x 10(-7) to 5.2 x 10(-6) mol L-1 in utlrapure water and 7.9 x 10(-7) to 5.2 x 10(-6) mol L-1 in natural water samples (supply dam). Detection limits (DL) obtained were between 2.4 x 10(-7) and 7.5 x 10(-7) mol L-1 and quantification limits (QL) between 7.9 x 10(-7) and 2.5 x 10(-6) mol L-1. The recovery experiments showed values between 86 and 114 % for spiked samples thus indicating the applicability of the electroanalytical methodology to quantify 17 alpha-ethinylestradiol directly in natural water of supply Dam (Billings Dam in Diadema-SP. Brazil), without any preconcentration or derivatization.en
dc.description.affiliationUniv Fed Sao Paulo, Inst Ciencias Ambientais Quim & Farmaceut, Campus Diadema,Prof Arthur Riedel St 275, BR-09972270 Sao Paulo, Brazil
dc.description.affiliationUniv Fed Sao Paulo, Dept Ciencias Mar, Campus Baixada Santista,Ave Almirante Saldanha da, BR-11040300 Sao Paulo, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Inst Ciencias Ambientais Quim & Farmaceut, Campus Diadema,Prof Arthur Riedel St 275, BR-09972270 Sao Paulo, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Dept Ciencias Mar, Campus Baixada Santista,Ave Almirante Saldanha da, BR-11040300 Sao Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent2471-2478
dc.identifierhttps://dx.doi.org/10.1007/s10008-015-3091-5
dc.identifier.citationJournal Of Solid State Electrochemistry. New York, v. 20, n. 9, p. 2471-2478, 2016.
dc.identifier.doi10.1007/s10008-015-3091-5
dc.identifier.issn1432-8488
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/51115
dc.identifier.wosWOS:000382130000012
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartof20th Brazilian Symposium of Electrochemistry and Electroanalysis (SIBEE)
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectEstrogensen
dc.subject17 alpha-ethinylestradiolen
dc.subjectBoron-doped diamond electrodesen
dc.subjectNatural watersen
dc.subjectAmperometric detectoren
dc.subjectHormonesen
dc.titleVoltammetric determination of 17 alpha-ethinylestradiol hormone in supply dam using BDD electrodeen
dc.typeinfo:eu-repo/semantics/article
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