Determination of vanadium in titanate-based ferroelectrics by INAA with discriminating gamma-ray spectrometry

0474041 - ÚJF 2018 RIV NL eng J - Journal Article
Kameník, Jan - Dragounová, K. - Kučera, Jan - Bryknar, Z. - Trepakov, Vladimír - Strunga, Vladimír
Determination of vanadium in titanate-based ferroelectrics by INAA with discriminating gamma-ray spectrometry.
Journal of Radioanalytical and Nuclear Chemistry. Roč. 311, č. 2 (2017), s. 1333-1338. ISSN 0236-5731. E-ISSN 1588-2780.
[1st International Conference on Radioanalytical and Nuclear chemistry (RANC). Budapest, 10.04.2016-15.04.2016]
R&D Projects: GA ČR(CZ) GBP108/12/G108; GA MŠMT LM2015056
Institutional support: RVO:68378271 ; RVO:61389005
Keywords : Titanate-based ferroelectrics * Vanadium * INAA * discriminating gamma-ray spectrometry
OECD category: Analytical chemistry; Condensed matter physics (including formerly solid state physics, supercond.) (FZU-D)
Impact factor: 1.181, year: 2017

Instrumental neutron activation analysis was used for determination of vanadium mass fraction in crystals of incipient ferroelectric strontium titanate and ferroelectric barium titanate. In order to improve vanadium limit of detection, discriminating gamma-ray spectrometry was used by inserting an absorption filter between the samples and an HPGe detector. The use of the absorption lead filter 6-mm thick yielded improvement of the vanadium limit of detection by a factor of two. The vanadium mass fraction determined in a quality control sample, which was NIST standard reference material SRM 1648 Urban Particulate Matter, was in close agreement with the certified value.
Permanent Link: http://hdl.handle.net/11104/0271139