title: Comparison of various calibration techniques for the direct spectroscopical analysis of SiC powders.
abstract: Techniques for the direct analysis of powdered advanced ceramics provide an advantageous alternative to methods using wet digestion in sample preparation. The direct spectrochemical methods based on electrothermal vaporization (ETV-ICP-OES, solid-ETV-AAS, etc.) show a great similarity to the classical method of d. c. arc excitation. The calibration procedure is the major difficulty of all techniques applied for direct solid sample analysis, as there is a lack of suitable reference materials of ceramics. Consequently, it was necessary to verify various possibilities of preparation and application of model calibration samples. The results of such a calibration are compared with those using within-laboratory standards.
authors.affiliation: Department of Chemistry, Faculty of Metallurgy, Technical University of Kosice, Letná 9, SK-042 00, Kosice, Slovakia.
authors.forename: K
authors.initials: K
authors.lastname: Flórián
authors.forename: J
authors.initials: J
authors.lastname: Hassler
authors.forename: W
authors.initials: W
authors.lastname: Schrön