caa a22 4500 465730493 CHVBK 20180323111740.0 cr unu---uuuuu 170327e19900201xx s 000 0 eng 10.1007/BF02039846 doi (NATIONALLICENCE)springer-10.1007/BF02039846 Determination of low-level90Sr in environmental materials: A novel approach to the classical method [Elektronische Daten] [R. Bojanowski, D. Knapinska-Skiba] A method was developed for the separation of strontium from large amounts of calcium which does not depend on fuming nitric acid. A sample in the form of mixed carbonates or oxides is stirred into concentrated nitric acid in the proportion 1∶7 w/v. Strontium forms insoluble nitrates while calcium remains in the solution. Two re-precipitation steps combined with an acetone wash yield a very pure strontium salt which is suitable for gravimetric determination of recovery. The method, devised originally for90Sr assay in sea water, can also be applied to solid samples which present analytical problems due to their high calcium content. Akadémiai Kiadó, 1990 Bojanowski R. Institute of Oceanology, Polish Academy of Sciences, Sopot, Poland aut Knapinska-Skiba D. Institute of Oceanology, Polish Academy of Sciences, Sopot, Poland aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 138/2(1990-02-01), 207-218 0236-5731 138:2<207 1990 138 10967 https://doi.org/10.1007/BF02039846 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02039846 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bojanowski R. Institute of Oceanology, Polish Academy of Sciences, Sopot, Poland aut NATIONALLICENCE 700 1- Knapinska-Skiba D. Institute of Oceanology, Polish Academy of Sciences, Sopot, Poland aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 138/2(1990-02-01), 207-218 0236-5731 138:2<207 1990 138 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer