caa a22 4500 469112859 CHVBK 20180323133116.0 cr unu---uuuuu 170328e19920301xx s 000 0 eng 10.1007/BF02164956 doi (NATIONALLICENCE)springer-10.1007/BF02164956 Neutron activation analysis of lithium niobate [Elektronische Daten] [R. Verma, J. Arunachalam, S. Gangadharan] A radiochemical neutron activation analysis procedure for the determination of Ta, W, Ir, Pt, Au, Cu, Cr, Co and Zn in lithium niobate has been developed. The method involves a one-step removal of radioactive nuclides of Nb, Ta and W representing the dominating radioactivity of the irradiated sample. After irradiation, the sample is fused with inactive carriers and Na2O2 in a nickel crucible. The fused cake is dissolved in HCl−H2O2 and Nb, Ta and W are homogeneously precipitated. The impurities are separated by combinations of precipitation and ion-exchange separations for precise γ-ray measurements with an overall chemical yield of 70% to 90%. The results are discussed. Akaémiai Kiadó, 1992 Verma R. Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, 400 085, Bombay, India aut Arunachalam J. Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, 400 085, Bombay, India aut Gangadharan S. Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, 400 085, Bombay, India aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 164/5(1992-03-01), 327-335 0236-5731 164:5<327 1992 164 10967 https://doi.org/10.1007/BF02164956 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02164956 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Verma R. Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, 400 085, Bombay, India aut NATIONALLICENCE 700 1- Arunachalam J. Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, 400 085, Bombay, India aut NATIONALLICENCE 700 1- Gangadharan S. Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, 400 085, Bombay, India aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 164/5(1992-03-01), 327-335 0236-5731 164:5<327 1992 164 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer