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of 41
pro vyhledávání: '"Silve Kallmann"'
Autor:
Silve Kallmann
Publikováno v:
Talanta. 34:677-698
The platinum-group metals (PGMs), Ru, Rh, Pd, Os, Ir and Pt, are widely used as catalysts in petroleum and chemical processes. They find wide applications in automotive exhaust-gas control converters and are of immense importance to the electronics i
Autor:
Silve Kallmann
Publikováno v:
Analytical Chemistry. 56:1020A-1028A
Autor:
C. Maul, Silve Kallmann
Publikováno v:
Talanta. 30:21-39
Sweeps samples are often complex mixtures containing from trace amounts to 20% of one or more precious metals distributed in matrices consisting of widely varying mixtures of base metals or their oxides. Three collection procedures are described that
Publikováno v:
Analytical Chemistry. 28:230-233
Publikováno v:
Talanta. 11:1509-1519
A method is described for the determination of trace amounts of zirconium and titanium. The two elements are separated from the sample matrix by precipitation with eupferron using iron as a carrier. Zirconium is determined after extraction with TOPO
Autor:
Silve Kallmann, Everett W. Hobart
Publikováno v:
Analytica Chimica Acta. 51:120-124
Autor:
Silve Kallmann, Frank Pristera
Publikováno v:
Industrial & Engineering Chemistry Analytical Edition. 13:8-11
Autor:
Silve Kallmann
Publikováno v:
Industrial & Engineering Chemistry Analytical Edition. 15:166-174
Autor:
Silve Kallmann, J.O. Hibbits
Publikováno v:
Talanta. 10:181-188
A method is described for the determination of nickel in beryllium or beryllium oxide. Nickel is precipitated with benzotriazole using cadmium as a carrier. A further separation from other elements is made by passing a hydrochloric acid-isopropyl alc