caa a22 4500 465745962 CHVBK 20180323111820.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00331422 doi (NATIONALLICENCE)springer-10.1007/BF00331422 Extraction systems of flame atomic absorption determination of trace impurities in high purity nickel salts [Elektronische Daten] [E. Vassileva, S. Arpadjan, R. Stefanova, V. Vassileva] Summary: Different extraction sytems including long chain quaternary alkylammonium salts and APDC were investigated in order to determine the optimal conditions for extraction separation and preconcentration of traces of Ag, Bi, Cd, Cu, Fe, Mo, Pb, Sb and Zn from high purity NiSO4·6H2O, NiCl2·6H2O, Ni(OOCCH3)2·4H2O and Ni(NO)3)2·6 H2O. Best results for multielement preconcentration were found with the extraction system HCl-trioctylmethylammonium chloride-0,002 mol/l APDC/MIBK. The proposed method permits the flame atomic absorption determination of 5·10−6%, Ag, Cd, Cu and Zn, 1·10−5% Bi, Fe, Pb and 5·10−5% Mo and Sb with good accuracy and precision. Springer-Verlag, 1990 Vassileva E. Faculty of Chemistry, University of Sofia, BG-1126, Sofia, Bulgaria aut Arpadjan S. Faculty of Chemistry, University of Sofia, BG-1126, Sofia, Bulgaria aut Stefanova R. Faculty of Chemistry, University of Sofia, BG-1126, Sofia, Bulgaria aut Vassileva V. Faculty of Chemistry, University of Sofia, BG-1126, Sofia, Bulgaria aut Fresenius' Journal of Analytical Chemistry Springer-Verlag 336/7(1990-01-01), 582-585 0937-0633 336:7<582 1990 336 216 https://doi.org/10.1007/BF00331422 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00331422 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vassileva E. Faculty of Chemistry, University of Sofia, BG-1126, Sofia, Bulgaria aut NATIONALLICENCE 700 1- Arpadjan S. Faculty of Chemistry, University of Sofia, BG-1126, Sofia, Bulgaria aut NATIONALLICENCE 700 1- Stefanova R. Faculty of Chemistry, University of Sofia, BG-1126, Sofia, Bulgaria aut NATIONALLICENCE 700 1- Vassileva V. Faculty of Chemistry, University of Sofia, BG-1126, Sofia, Bulgaria aut NATIONALLICENCE 773 0- Fresenius' Journal of Analytical Chemistry Springer-Verlag 336/7(1990-01-01), 582-585 0937-0633 336:7<582 1990 336 216 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer