title: [Catalytic spectrophotometric determination of trace manganese in theragran-M with Mn (II)-KIO4-NTA-coomassie brilliant blue G250].
abstract: A new indicator reaction is developed on the basis of manganese catalyzed oxidation of coomassie brilliant blue G250 by potassium periodate with nitrilotriaetic acid as an activator. The detection limit for manganese is 6.76 x 10(-8) g/L. The linear range of determination is 0.02-0.30 microgram/25 mL.
authors.affiliation: Dept. of Applied Chemistry, Shandong Institute of Building Materials, Jinan, China.
authors.forename: B
authors.initials: B
authors.lastname: Du
authors.forename: Q
authors.initials: Q
authors.lastname: Wei
authors.forename: X
authors.initials: X
authors.lastname: Zang
authors.forename: B
authors.initials: B
authors.lastname: Zhang
mesh_terms: D004338:Drug Combinations; D006801:Humans; D008345:Manganese / Q000032:analysis*; D009930:Organic Chemicals; D013053:Spectrophotometry / Q000379:methods; D014815:Vitamins / Q000737:chemistry*
chemical_list: D004338:Drug Combinations; D009930:Organic Chemicals; D014815:Vitamins; D008345:Manganese; C047053:Theragran-M