title: Spectrophotometric determination of Fe(II) in pharmaceutical multivitamin preparations by azo dye derivatives of pyrocatechol.
authors.affiliation: Department of Medicinal Chemistry, Medical Academy, Lublin, Poland.
authors.forename: S
authors.initials: S
authors.lastname: Zareba
authors.forename: H
authors.initials: H
authors.lastname: Hopka-a
mesh_terms: D001391:Azo Compounds; D002396:Catechols; D002413:Cations, Divalent; D004396:Coloring Agents; D005296:Ferrous Compounds / Q000032:analysis*; D013054:Spectrophotometry, Atomic; D013056:Spectrophotometry, Ultraviolet; D014815:Vitamins / Q000032:analysis*
chemical_list: D001391:Azo Compounds; D002396:Catechols; D002413:Cations, Divalent; D004396:Coloring Agents; D005296:Ferrous Compounds; D014815:Vitamins; C034221:catechol