title: Intercomparison of techniques available at INETI in the analysis of two IAEA candidate research materials.
abstract: Under contract with the IAEA, the epiphytic lichen Evernia prunastri was collected to prepare a multielement lichen reference material for quality assurance of environmental studies. An intercomparison run on trace and minor elements in this candidate research material (IAEA-336) was organized in which six analytical groups of the National Institute of Engineering and Industrial Technology (INETI) took part. INAA, PIXE, XRF, AAS, and ICP-ES were applied. The results obtained by different methods are compared, and their complementarity is discussed. As a quality control, the IAEA cabbage research material (IAEA-359) was analyzed. The results agree quite well with the estimated values given by the IAEA.
authors.affiliation: Departamento de Química (DCTN/SQ), Sacavém, Portugal.
authors.forename: M C
authors.initials: MC
authors.lastname: Freitas
authors.forename: M H
authors.initials: MH
authors.lastname: Afonso
authors.forename: C
authors.initials: C
authors.lastname: Almeida
authors.forename: L C
authors.initials: LC
authors.lastname: Alves
authors.forename: M F
authors.initials: MF
authors.lastname: Araújo
authors.forename: M A
authors.initials: MA
authors.lastname: Barreiros
authors.forename: J
authors.initials: J
authors.lastname: Seabra e Barros
authors.forename: M B
authors.initials: MB
authors.lastname: Costa
authors.forename: M A
authors.initials: MA
authors.lastname: Gouveia
authors.forename: M A
authors.initials: MA
authors.lastname: Reis
mesh_terms: D004784:Environmental Monitoring / Q000295:instrumentation*; D008011:Lichens / Q000737:chemistry*; D009501:Neutron Activation Analysis; D010944:Plants / Q000737:chemistry; D011174:Portugal; D011786:Quality Control; D013052:Spectrometry, X-Ray Emission; D013054:Spectrophotometry, Atomic; D014131:Trace Elements / Q000032:analysis
chemical_list: D014131:Trace Elements