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Validation and setting up quality control for characterization of aluminum alloys in non‑ferrous fraction of auto‑shredders

2020Journal article Open access
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dc.contributor.authorTrancoso, Maria Ascensão
dc.contributor.authorNogueira, Carlos
dc.contributor.authorCalisto, Sandra C.
dc.date.accessioned2021-04-14T14:16:50Z
dc.date.available2021-04-14T14:16:50Z
dc.date.issued2020
dc.description.abstractABSTRACT: The improvement of recycling rates of metal waste, namely those of end-of life vehicles, is nowadays becoming imperative. Aluminum and its alloys are the main metal components in non-ferrous fraction of auto-shredders separated out after sampling. Silicon, Mg, Cu, Zn, Mn, Ti, Fe and Cr are alloying elements, which allowed the identification and differentiation of Al alloys. Flame Atomic Absorption Spectrometry was used for quantification after HCl-HNO3 digestion, with the exception of Si, where HCl–HNO3–HF–H3BO3 digestion was used. Performance characteristics of measurement procedures, namely analytical dynamic ranges, limits of detection and quantification, precision and trueness were evaluated and measurement uncertainty estimated by applying an approach based on precision and trueness validation studies and quality control data. Target values, for repeatability, intermediate precision, trueness (recovery) and measurement uncertainty, were specified to differentiate Al alloys based on their own fit-for-purpose. Metrological traceability of the measurements results of the alloying elements was established by using certified values of British Chemical Standard (BCS) of Al alloys, BCS nº 181/1, BCS Nº 268. BCS Nº 300 and Standard Reference Material of Al-base alloy, SRM 87. The quantification of Si, Mg, Cu, Zn, Mn, Ti, Fe and Cr in aluminum alloys from the non-ferrous fraction of automatic crushers was determined successfully through the validated procedures.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationTrancoso, Maria Ascensão... [et.al.] - Validation and setting up quality control for characterization of aluminum alloys in non‑ferrous fraction of auto‑shredders. In: SN Applied Sciences, 2020, Vol.2 (11), article nº 1762pt_PT
dc.identifier.doi10.1007/s42452-020-03554-9pt_PT
dc.identifier.issn2523-3963
dc.identifier.urihttp://hdl.handle.net/10400.9/3550
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringer Naturept_PT
dc.relationSELECTIVE RECOVERY OF NON-FERROUS METAL AUTOMOTIVE SHREDDER BY COMBINED ELECTROMAGNETIC TENSOR SPECTROSCOPY AND LASER-INDUCED PLASMA SPECTROSCOPY
dc.relation.publisherversionhttps://doi.org/10.1007/s42452-020-03554-9pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAluminium alloyspt_PT
dc.subjectNon-ferrous metalspt_PT
dc.subjectRecyclingpt_PT
dc.subjectQuality controlpt_PT
dc.subjectValidationpt_PT
dc.titleValidation and setting up quality control for characterization of aluminum alloys in non‑ferrous fraction of auto‑shredderspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleSELECTIVE RECOVERY OF NON-FERROUS METAL AUTOMOTIVE SHREDDER BY COMBINED ELECTROMAGNETIC TENSOR SPECTROSCOPY AND LASER-INDUCED PLASMA SPECTROSCOPY
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/603676/EU
oaire.citation.titleSN Applied Sciencespt_PT
oaire.citation.volume2pt_PT
oaire.fundingStreamFP7
person.familyNameNogueira
person.givenNameCarlos
person.identifier.ciencia-id011E-FCCD-4FA6
person.identifier.orcid0000-0003-2949-5046
person.identifier.ridA-4926-2013
person.identifier.scopus-author-id7006686159
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationb4222458-c0fc-4926-9d9a-e3cf9ae1e7e3
relation.isAuthorOfPublication.latestForDiscoveryb4222458-c0fc-4926-9d9a-e3cf9ae1e7e3
relation.isProjectOfPublication1d70ce64-9da7-442f-b4ce-9236e2303796
relation.isProjectOfPublication.latestForDiscovery1d70ce64-9da7-442f-b4ce-9236e2303796

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