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dc.contributor.authorAraújo, Daniel F.pt_BR
dc.contributor.authorBoaventura, Geraldo R.pt_BR
dc.contributor.authorViers, Jerômept_BR
dc.contributor.authorMulholland, Daniel S.pt_BR
dc.contributor.authorWeiss, Dominikpt_BR
dc.contributor.authorAraújo, Déborapt_BR
dc.contributor.authorLima, Bárbarapt_BR
dc.contributor.authorRuiz, Izabelpt_BR
dc.contributor.authorMachado, Wilsonpt_BR
dc.contributor.authorBabinski, Marlypt_BR
dc.contributor.authorDantas, Eltonpt_BR
dc.date.accessioned2018-01-04T19:14:41Z-
dc.date.available2018-01-04T19:14:41Z-
dc.date.issued2017pt_BR
dc.identifier.citationARAUJO, Daniel F. et al. Ion Exchange Chromatography and Mass Bias Correction for Accurate and Precise Zn Isotope Ratio Measurements in Environmental Reference Materials by MC-ICP-MS. Journal of the Brazilian Chemical Society, São Paulo, v. 28, n. 2, p. 225-235, fev. 2017. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532017000200225&lng=en&nrm=iso>. Acesso em: 03 out. 2018. http://dx.doi.org/10.5935/0103-5053.20160167.pt_BR
dc.identifier.urihttp://repositorio.unb.br/handle/10482/30689-
dc.description.abstractPrecise and accurate d66/64Zn data for environmental reference materials (RMs) including rocks, sediments, soils and plants are presented in order to improve the metrological traceability and analytical control of Zn isotope ratio determinations in future environmental studies. Previously developed ion exchange chromatography protocols were adjusted to enable faster sample throughput and instrumental mass bias processes were investigated. The improved chromatographic protocol yielded precise and quantitative recoveries (99 ± 7%, σ, n = 16), while the mass bias correction using Cu as external dopant provided precisions better than 0.02‰, 2σ, n = 7. Investigations into spectral and non-spectral interferences identified significant formation of Cr and Ti oxides and hydroxide ionic species. Analysis of six RMs (BHVO-2 basalt (USGS), BCR-2 basalt (USGS), AGV-2 andesite (USGS), 2709 San Joaquin soil (NIST), 1646a estuarine sediment (NIST) and 1573a tomato leaves (NIST)) showed good reproducibility (< 0.01‰, 2s, 5 ≤ n ≥ 1).pt_BR
dc.language.isoenpt_BR
dc.publisherSociedade Brasileira de Químicapt_BR
dc.rightsAcesso Abertopt_BR
dc.titleIon Exchange Chromatography and Mass Bias Correction for Accurate and Precise Zn Isotope Ratio Measurements in Environmental Reference Materials by MC-ICP-MSpt_BR
dc.typeArtigopt_BR
dc.subject.keywordGeoquímicapt_BR
dc.subject.keywordZinco - isótopospt_BR
dc.subject.keywordEspectrometria de massapt_BR
dc.subject.keywordIsótopospt_BR
dc.rights.licenseJournal of the Brazilian Chemical Society - This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.-
dc.identifier.doihttp://dx.doi.org/10.5935/0103-5053.20160167pt_BR
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