caa a22 4500 46574818X CHVBK 20180323111826.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00322779 doi (NATIONALLICENCE)springer-10.1007/BF00322779 Trace characterization of high-purity nickel by instrumental and radiochemical neutron activation analysis [Elektronische Daten] [M. Franek, V. Krivan] Summary: The high activity of the radionuclides 65Ni (t1/2=2.52 h) and 58Co (t1/2=70.8 d) imposes severe limitations on the performance of direct instrumental neutron activation analysis of nickel. The extent of the interference of the 58Co depends on the ratio of the fluxes of the fast and thermal neutrons. A method of selective removal of cobalt, based on extraction with β-nitroso-α-naphthol has been developed for the purpose of radiochemical NAA. Separation yields have been determined for 36 elements. The detection limits obtainable with both the instrumental and the radiochemical method are <10−4 μg/g for the elements Au, Eu, Ir, La, Sc and Sm, between 10−4 and 10−3 μg/g for Cr, Cs, Hf, Hg, Lu, Re, Sb, Ta, Th, Tm and Yb, between 10−3 and 10−2 μg/g for As, Ag, Br, Ce, Ga, Na, Ru, Se, W and Zn, and in the range 0.01-1 μg/g for Ba, Cd, Co, Fe, In, K, Mo, Nd, Pd, Rb, Sn, U and Zr. Springer-Verlag, 1990 Franek M. Sektion Analytik und Höchstreinigung der Universität Ulm, Oberer Eselsberg N 26, D-7900, Ulm, Federal Republic of Germany aut Krivan V. Sektion Analytik und Höchstreinigung der Universität Ulm, Oberer Eselsberg N 26, D-7900, Ulm, Federal Republic of Germany aut Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/1(1990-01-01), 28-33 0937-0633 338:1<28 1990 338 216 https://doi.org/10.1007/BF00322779 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00322779 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Franek M. Sektion Analytik und Höchstreinigung der Universität Ulm, Oberer Eselsberg N 26, D-7900, Ulm, Federal Republic of Germany aut NATIONALLICENCE 700 1- Krivan V. Sektion Analytik und Höchstreinigung der Universität Ulm, Oberer Eselsberg N 26, D-7900, Ulm, Federal Republic of Germany aut NATIONALLICENCE 773 0- Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/1(1990-01-01), 28-33 0937-0633 338:1<28 1990 338 216 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer