caa a22 4500 469129476 CHVBK 20180323133200.0 cr unu---uuuuu 170328e19920601xx s 000 0 eng 10.1007/BF00324986 doi (NATIONALLICENCE)springer-10.1007/BF00324986 Trace characterisation of lithium niobate by neutron activation analysis [Elektronische Daten] [R. Verma, J. Arunachalam, S. Gangadharan, J. Vyas, G. Kothiyal, M. Gupta] Summary: Coprecipitation behaviour of As, Au, Co, Cr, Cu, Eu, Fe, Ir, La, Lu, Mn, Mo, Nb, Ni, Pd, Pt, Sb, Sc, Ta, W, Zn and Zr during precipitation of hydrous oxide of niobium from lithium niobate was investigated. The matrix was dissolved in HF-HNO3, evaporated to dryness and niobium was precipitated from HNO3-H2O2 medium. The recovery studies were made using radiotracers. A radiochemical separation scheme based on group precipitation has been developed for the determination of Au, Co, Cr, Cu, Fe, Mn, Ni, Pd, Pt, Zn, Zr and rare earth elements. The method was applied to the analysis of lithium niobate. This analysis has provided fruitful information for improving the quality of the crystal. Springer-Verlag, 1992 Verma R. Analytical Chemistry Division, B.A.R.C., Trombay, 400085, Bombay, India aut Arunachalam J. Analytical Chemistry Division, B.A.R.C., Trombay, 400085, Bombay, India aut Gangadharan S. Analytical Chemistry Division, B.A.R.C., Trombay, 400085, Bombay, India aut Vyas J. Technical Physics and Prototype Engineering Division, B.A.R.C., Trombay, 400085, Bombay, India aut Kothiyal G. Technical Physics and Prototype Engineering Division, B.A.R.C., Trombay, 400085, Bombay, India aut Gupta M. Technical Physics and Prototype Engineering Division, B.A.R.C., Trombay, 400085, Bombay, India aut Fresenius' Journal of Analytical Chemistry Springer-Verlag 344/6(1992-06-01), 261-264 0937-0633 344:6<261 1992 344 216 https://doi.org/10.1007/BF00324986 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00324986 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Verma R. Analytical Chemistry Division, B.A.R.C., Trombay, 400085, Bombay, India aut NATIONALLICENCE 700 1- Arunachalam J. Analytical Chemistry Division, B.A.R.C., Trombay, 400085, Bombay, India aut NATIONALLICENCE 700 1- Gangadharan S. Analytical Chemistry Division, B.A.R.C., Trombay, 400085, Bombay, India aut NATIONALLICENCE 700 1- Vyas J. Technical Physics and Prototype Engineering Division, B.A.R.C., Trombay, 400085, Bombay, India aut NATIONALLICENCE 700 1- Kothiyal G. Technical Physics and Prototype Engineering Division, B.A.R.C., Trombay, 400085, Bombay, India aut NATIONALLICENCE 700 1- Gupta M. Technical Physics and Prototype Engineering Division, B.A.R.C., Trombay, 400085, Bombay, India aut NATIONALLICENCE 773 0- Fresenius' Journal of Analytical Chemistry Springer-Verlag 344/6(1992-06-01), 261-264 0937-0633 344:6<261 1992 344 216 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer