Methodology for the Determination of Stoichiometry and Metal Impurities in New PZT Ceramics by Inductively Coupled Plasma Optical Spectrometry (ICP OES) |
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| Authors: | Margarita Villanueva Tagle Dirce Pozebon Rafael Hernández García Francisco Calderón Piñar María Dolores Durruthy Rodríguez Mario Pomares Alfonso |
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| Affiliation: | 1. Facultad de Química , Universidad de La Habana, Zapata y G, El Vedado , La Habana, Cuba villa@fq.uh.cu;3. Instituto de Química, Universidade Federal de Rio Grande do Sul, Av. Bento Goncalves , Porto Alegre, Rio Grande do Sul, Brazil;4. Instituto de Ciencia y Tecnología de Materiales, Universidad de La Habana , Cuba;5. Instituto de Cibernética, Matemática y Física, CITMA , La Habana, Cuba |
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| Abstract: | ABSTRACT An inductively coupled plasma optical emission spectrometry (ICP OES) method for Pb, Zr, Ti, Sr, Cr, Fe, Cu, Mn, and Al determination in PZT-ceramics is described. Careful analytical work was carried out in order to evaluate precision, accuracy, and matrix interference. Different procedures were investigated for the ceramics decomposition. Axially viewed plasma operating conditions were evaluated for trace elements (Al, Fe, Cu, Mn, and Cr) in presence of sample matrix. The relative standard deviation (RSD) ranged from 0.7 to 3.9%, whereas the analytes recoveries in the spiked samples ranged from 92 to 119%. The detection limits (LODs) of trace elements ranged from 2.4 to 2.6 µg g?1. The developed method is useful for evaluating the PZT-ceramics synthesis. |
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| Keywords: | ICP OES impurities major elements piezoelectric ceramics PZT |
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