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dc.contributor.author
Pereyra, Marcelo Tomas
dc.contributor.author
Fernández Band, Beatriz Susana
dc.contributor.author
Lista, Adriana Guillermina
dc.date.available
2017-12-14T17:43:29Z
dc.date.issued
2014-12
dc.identifier.citation
Pereyra, Marcelo Tomas; Fernández Band, Beatriz Susana; Lista, Adriana Guillermina; Measurement uncertainty estimated from accuracy assessment by using an in-house reference material: two case studies for the extraction of total PAH in industrial wastewater sludges; Elsevier Science; Microchemical Journal; 119; 12-2014; 145-151
dc.identifier.issn
0026-265X
dc.identifier.uri
http://hdl.handle.net/11336/30642
dc.description.abstract
Measurement uncertainty is a required parameter to assure the reliability of analytical results because many management decisions (scientific, technical, regulatory, and economical) are based on the results of analytical processes. Moreover, since ISO 17025 accreditation requirements specify protocols for estimating uncertainty in measurements, the community of the analytical laboratories had to start reporting their results with the corresponding associated uncertainty. Several approaches have been reported for estimating uncertainty, although the evaluation of uncertainty from the method accuracy assessment has the advantage to not require extra efforts for the analysts. In-house reference materials are useful both to perform the validation studies and to estimate the measurement uncertainty when certified reference materials are not available. In this study, we presented a practical methodology to calculate the uncertainty of the analytical results when the accuracy assessment is performed by using an in-house reference material developed to fit this purpose. For evaluating the suitability of this approach, we applied it to the assessment of two extraction methods for total PAH determination in industrial sludges. The uncertainty budgets revealed that the uncertainty arising from subsampling gives decisive contributions to the overall uncertainty (from 18% to 69%), depending on the homogeneity in the sample preparation process.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Measurement Uncertainty
dc.subject
In-House Reference Material
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Total Pah
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Extraction
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Industrial Wastewater Sludge
dc.subject.classification
Otras Ciencias Químicas
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Ciencias Químicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Measurement uncertainty estimated from accuracy assessment by using an in-house reference material: two case studies for the extraction of total PAH in industrial wastewater sludges
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-12-12T18:43:22Z
dc.journal.volume
119
dc.journal.pagination
145-151
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Pereyra, Marcelo Tomas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
dc.description.fil
Fil: Fernández Band, Beatriz Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
dc.description.fil
Fil: Lista, Adriana Guillermina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
dc.journal.title
Microchemical Journal
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.microc.2014.12.001
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0026265X14002215
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