[On the official inspection of coal-tar dyes in 1969. 3. Analysis of Cr, Zn, Fe and Pb contaminants in food coal-tar dyes and their aluminium lakes by atomic absorption spectrophotometry].
D000042:Absorption; D000535:Aluminum; D002857:Chromium / Q000032:analysis*; D003033:Coal Tar / Q000032:analysis*; D004396:Coloring Agents / Q000032:analysis*; D005503:Food Additives / Q000032:analysis*; D007501:Iron / Q000032:analysis*; D007854:Lead / Q000032:analysis*; D013053:Spectrophotometry; D015032:Zinc / Q000032:analysis*
D004396:Coloring Agents; D005503:Food Additives; D002857:Chromium; D007854:Lead; D003033:Coal Tar; D000535:Aluminum; D007501:Iron; D015032:Zinc