Determination of yttrium and lanthanum in zirconium dioxide by HPLC, X-ray fluorescence and neutron activation analyses

被引：4

作者：

França, YV ^{[1
]}

Leitao, F ^{[1
]}

Shihomatsu, HM ^{[1
]}

Scapin, WS ^{[1
]}

de Moraes, NMP ^{[1
]}

Salvador, VL ^{[1
]}

Figueiredo, AMG ^{[1
]}

Muccillo, ENS ^{[1
]}

Muccillo, R ^{[1
]}

机构：

[1] IPEN CNEN SP, BR-05422970 Sao Paulo, Brazil

来源：

CHROMATOGRAPHIA | 1999年 / 49卷 / 1-2期

关键词：

column liquid chromatography; zirconium oxide ceramics; X-ray fluorescence; neutron activation;

D O I：

10.1007/BF02467194

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Lanthania- and yttria-stabilized zirconium oxide ceramics have been examined using High Performance Liquid Chromatography (HPLC), thermal neutron activation (NA) and X-ray Fluorescence (XRF) analyses and thus determine the stabilizer content. Ceramic powders with the composition. ZrO2:x mol % La2O3 (x = 5, 10, 15, 20 and 33) and ZrO2:x mol % Y2O3 (x = 10, 15, 20 and 25) were prepared by the citrate and the co-precipitation techniques, respectively. The lanthanum content was determined by HPLC (x = 5.09, 9.78, 14.98, 19.81 and 25.94) and NA (x- = 5.15, 10.32, 17.25, 21.08 and 27.97) analyses, the yttrium content by HPLC (x = 8.5, 13.5, 17.9 and 22.1) and XRF (x = 9.9, 15.8, 20.1 and 24.9) analyses. An experimental sequence, based on continuous dilution of ceramic powder solutions, is proposed for preparing samples for HPLC measurements. A swimming pool nuclear reactor is used for NA analysis. The quantitative determinations of yttrium and lanthanum doping levels obtained using those techniques are described.

引用

页码：91 / 94

页数：4

共 13 条

[1] NEUTRON ACTIVATION ANALYSIS OF RARE EARTH IMPURITIES IN EUROPIUM OXIDE [J].