Combination of neutron activation, atomic absorption spectroscopy and conventional methods in the elemental analysis of silicate rocks
GOUVEIA, M. A, SEABRA E BARROS, J, JESUS TAVARES, M, CARMO FREITAS, M
Published in Journal of radioanalytical and nuclear chemistry (01.02.1986)
Published in Journal of radioanalytical and nuclear chemistry (01.02.1986)
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Journal Article
Intercomparison of techniques available at INETI in the analysis of two IAEA candidate research materials
Freitas, M C, Afonso, M H, Almeida, C, Alves, L C, Araújo, M F, Barreiros, M A, Seabra e Barros, J, Costa, M B, Gouveia, M A, Reis, M A
Published in Biological trace element research (1994)
Published in Biological trace element research (1994)
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Journal Article
Validation and quality control schemes based on the expression of results with uncertainty
Bettencourt da Silva, Ricardo J.N, Camões, M.Filomena G.F.C, Seabra e Barros, João
Published in Analytica chimica acta (30.06.1999)
Published in Analytica chimica acta (30.06.1999)
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Journal Article
Conference Proceeding
Validation of the uncertainty evaluation for the determination of metals in solid samples by atomic spectrometry
BETTENCOURT DA SILVA, R. J. N, CAMOES, M. F. G. F. C, SEABRA E BARROS, J
Published in Accreditation and quality assurance (01.04.1998)
Published in Accreditation and quality assurance (01.04.1998)
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Conference Proceeding
Journal Article
Preparation and analysis of a marble reference material
Carmo Freitas, M., Moens, L., De Paepe, P., Seabra E Barros, J.
Published in Journal of radioanalytical and nuclear chemistry (01.07.1988)
Published in Journal of radioanalytical and nuclear chemistry (01.07.1988)
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