1. Intercomparison of techniques available at INETI in the analysis of two IAEA candidate research materials
- Author
-
Freitas, Mc, Afonso, Mh, Almeida, C., Luis Alves, Araujo, Mf, Barreiros, Ma, Barros, Jse, Costa, Mb, Gouveia, Ma, and Reis, Ma
- Subjects
Quality Control ,Lichens ,Portugal ,Spectrophotometry, Atomic ,Endocrinology, Diabetes and Metabolism ,Biochemistry (medical) ,Clinical Biochemistry ,Spectrometry, X-Ray Emission ,Neutron Activation Analysis ,General Medicine ,Plants ,Biochemistry ,Trace Elements ,Inorganic Chemistry ,Environmental Monitoring - 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.
- Published
- 1994