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

被引：4
|
作者：
Kamenik, Jan [1 ]
Dragounova, Katerina [2 ]
Kucera, Jan [1 ]
Bryknar, Zdenek [2 ]
Trepakov, Vladimir A. [3 ,4 ]
Strunga, Vladimir [1 ]
机构：
[1] Czech Acad Sci, Inst Nucl Phys, Rez 25068 130, Husinec Rez, Czech Republic
[2] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Trojanova 13, Prague 12000, Czech Republic
[3] Czech Acad Sci, Inst Phys, Slovance 2, Prague 18221, Czech Republic
[4] Ioffe Inst, St Petersburg 194021, Russia
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2017年 / 311卷 / 02期
关键词：
Titanate-based ferroelectrics; Vanadium; INAA; Discriminating gamma-ray spectrometry; NEUTRON-ACTIVATION ANALYSIS; KTAO3; LINE;
D O I：
10.1007/s10967-016-5101-1
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
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.
引用
收藏
页码：1333 / 1338
页数：6
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