The microwave-assisted acid dissolution of sintered bodies of ties, high-temperature stability, high-temperature strength, 28 structural and electronic advanced ceramic materials was wear resistance, corrosion/oxidation resistance, chemical systematically evaluated. These materials included zirconiainertness, or electrical, optical and/or magnetic properties.1 based ceramics, such as m-ZrO 2 (a non-stabilized monoclinic These materials are used in structural applications (machine zirconia), Ca-PSZ and Mg-PSZ (two partially stabilized and cutting tools, wear components, heat exchangers, aerozirconias), Y-FSZ (a fully stabilized zirconia) and Ce-TZP, space components, automotive engine components such as Yb-TZP and Y-TZP/Ce (three tetragonal polycrystalline turbocharge rotors and roller cam followers, power generation zirconias); alumina-based ceramics, such as Al 2 O 3 , mullite and components, biomedical implants, processing equipment used spinel; ceria-based ceramics, such as CeO 2 -Gd 2 O 3 (cubic ceria for fabricating a variety of polymer, metal and ceramic parts) gadolinia); titania-based ceramics, such as TiO 2

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⎯An inductively coupled plasma−optical emission spectrometry method was optimized and validated for the determination of major elements (Ca, K, Mg, Na and P) in cultivated freshwater fish (rainbow trout Oncorhynchus mykiss). The method was validated by analysis of a Certified Reference Material, consisting in a frozen tissue homogenate from lake trout (Salvelinus namaycush namaycush). The linearity of this method was very good, as evidenced by the coefficients of correlation (r) for calibration graphs that were higher than 0.9999 in all cases and by linearity test (response factor <5% and relative calibration graph slope <2%). Accuracy, expressed as relative recovery (%) in comparison with certified concentration ranged from 100 to 109%, and precision, expressed as residual standard deviation (%) ranged from 1.2 to 6.5% (repeatability) and from 1.0 to 9.6% (reproducibility). The limit of quantification ranged from 4 ng/mL (Ca and Mg) to 203 ng/mL (P). The optimized method was applied to major element determination in skin and muscle samples from rainbow trout fillets.