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78Enrichment procedures for small quantities of metals by organometallic and other coprecipitation techniques for X-ray fluorescence analysis, Fresenius' Zeitschrift f??r analytische Chemie The microanalysis of silicate and carbonate minerals, Microchimica Acta Zur polarographischen Bestimmung von Arsen in sulfidischen Zinkerzen und in Zinkmetall, Fresenius' Zeitschrift f??r analytische Chemie Method of two reagents on a solid phase for the determination of simultaneously present vanadium(V) and molybdenum(VI), Journal of Analytical Chemistry Zur Bestimmung kleiner Mengen Zinn in Erzen, Fresenius' Zeitschrift f??r analytische Chemie Spectrophotometric determination of gallium(III) with carminic acid and hexadecylpyridinium chloride, Microchimica Acta Journal of Water Chemistry and Technology.
Spectrophotometric determination of Cu(II) in water with phenylfluorone in the presence of polyvinylpyrrolidone and inorganic electrolytes, Journal of Water Chemistry and Technology Ta u2014 Tantal, Handbuch der Spurenanalyse Germanium, Betriebsanalysen