title: [Application of the chromatographic-spectrophotometric method for the analytical control of l-ascorbic acid in pharmaceutical and plant material].
abstract: The conditions of chromatographic separation allowing the isolation of L-ascorbic acid from its products of decomposition and other accompanying substances in the determined pharmaceutic preparation and plant materials were established. The isolated L-ascorbic acid was signed by the extractive--spectrophotometric method using coupled redox-complexation reactions with iron(III), 1, 10 phenantroline and bromophenol blue system. The analytical procedure allowing the evaluation of durability of vitamin C in multivitamin "Vitaral" preparate was described. The procedure was used also for the evaluation of the loss of L-ascorbic acid in the parsley and lovage in the process of drying and storage.
authors.affiliation: Zakład Chemii Analitycznej Uniwersytet Slaski, Katowice.
authors.forename: U
authors.initials: U
authors.lastname: Hachuła
authors.forename: B
authors.initials: B
authors.lastname: Zawisza
authors.forename: W
authors.initials: W
authors.lastname: Winkler
mesh_terms: D001205:Ascorbic Acid / Q000032:analysis*; D002845:Chromatography / Q000379:methods*; D006801:Humans; D004364:Pharmaceutical Preparations / Q000737:chemistry*; D010944:Plants / Q000737:chemistry*; D013053:Spectrophotometry / Q000379:methods*
chemical_list: D004364:Pharmaceutical Preparations; D001205:Ascorbic Acid