title: [Nickel, cobalt, iron, manganese, zinc and chromium content of black tea and the distribution of these metals between prepared infusion and the extracted tea leaves (author's transl)].
abstract: Twentytwo samples of black tea were examined for nickel, cobalt, iron, manganese and chromium by atomic absorption spectro-photometry. The amounts of these metals in the tea beverage as well as the amount remaining in the tea leaf residue was determined in duplicate experiments. From these results the proportion of each metal extracted may be calculated, as well as its concentration in the tea beverage prepared under defined conditions.
mesh_terms: D002857:Chromium / Q000032:analysis; D003035:Cobalt / Q000032:analysis; D007501:Iron / Q000032:analysis; D008345:Manganese / Q000032:analysis; D009532:Nickel / Q000032:analysis*; D012995:Solubility; D013045:Species Specificity; D013054:Spectrophotometry, Atomic; D013662:Tea / Q000032:analysis*; D014131:Trace Elements / Q000032:analysis*; D015032:Zinc / Q000032:analysis
chemical_list: D013662:Tea; D014131:Trace Elements; D002857:Chromium; D003035:Cobalt; D008345:Manganese; D009532:Nickel; D007501:Iron; D015032:Zinc
vernacular_title: Uber den ursprünglichen Gehalt des Schwarztees an Nickel, Kobalt, Eisen, Mangan, Zink und Chrom und die Verteilung der Metallionen zwischen dem bereiteten Teegetränk und den extrahierten Blätterrückständen.