caa a22 4500 463220145 CHVBK 20180405153209.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1134/S1061934807080072 doi (NATIONALLICENCE)springer-10.1134/S1061934807080072 Sorption-spectrometric determination of lanthanum in the presence of uranium and thorium with the reagent Arsenazo M on the solid phase of fibrous filled sorbents [Elektronische Daten] [V. Dedkova, O. Shvoeva, S. Savvin] The possibility of the determination of La(III) in the presence of U(VI) and Th(IV), a solid phase with the reagent Arsenazo M, was examined. It was demonstrated that the determination of lanthanum with Arsenazo M in 0.05 M HCl in the presence of 3-, 2-, 1-, and 10-fold amounts of U(VI), Th(IV), Zr(IV), and Ti(IV) is possible after sorption on polyacrylonitrile fiber filled an ion exchanger with iminodiacetate groups (PANV-ANKB-50). For sorption under the optimum conditions at pH 5, the detection limit of lanthanum is 0.01 μg/mL. The method for the determination of lanthanum was verified by the added-found method in the analysis of tap water. To decrease the matrix effect, it is recommended to perform sorption in the analysis of water at pH 2.5. In this case, the detection limit of La(III) is 0.02 μg/mL, RSD < 20%. The time of the analysis of 5 or 6 samples is no longer than 20 min. Pleiades Publishing, Ltd., 2007 Dedkova V. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, ul. Kosygina 19, 119991, Moscow, Russia aut Shvoeva O. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, ul. Kosygina 19, 119991, Moscow, Russia aut Savvin S. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, ul. Kosygina 19, 119991, Moscow, Russia aut Journal of Analytical Chemistry Nauka/Interperiodica 62/8(2007-08-01), 733-737 1061-9348 62:8<733 2007 62 10809 https://doi.org/10.1134/S1061934807080072 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1061934807080072 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dedkova V. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, ul. Kosygina 19, 119991, Moscow, Russia aut NATIONALLICENCE 700 1- Shvoeva O. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, ul. Kosygina 19, 119991, Moscow, Russia aut NATIONALLICENCE 700 1- Savvin S. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, ul. Kosygina 19, 119991, Moscow, Russia aut NATIONALLICENCE 773 0- Journal of Analytical Chemistry Nauka/Interperiodica 62/8(2007-08-01), 733-737 1061-9348 62:8<733 2007 62 10809 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer