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Extraction systems of flame atomic absorption determination of trace impurities in high purity nickel salts (1990)

Vassileva, E. ; Arpadjan, S. ; Stefanova, R. ; [et al.]

Springer

Fresenius' Zeitschrift für analytische Chemie 336 (1990), S. 582-585

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ISSN: 1618-2650

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Notes: 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.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00331422

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