title: High-performance liquid chromatographic determination of some anthraquinone and naphthoquinone dyes occurring in historical textiles.
abstract: A reversed-phase HPLC method has been developed for identification and quantitation of nine natural quinone dyes and applied to historical textile fibres. A Purospher RP18e column was used with a convex gradient of methanol in a mobile phase of 0.1 M aqueous citrate buffer (pH 2.5) and spectrophotometric diode-array detection at 270 nm. For identification of alizarin, purpurin and xanthopurpurin, occurring together in the madder plant, an isocratic method was used with a methanol-0.2 M acetate buffer (pH 4.3) (75:25) as the mobile phase. After an acid extraction of textile fibres and the analysis of the extracts, alizarin and purpurin were identified and quantitated in three fibres.
authors.affiliation: Department of Analytical Chemistry, Charles University, Prague, Czech Republic.
authors.forename: P
authors.initials: P
authors.lastname: Novotná
authors.forename: V
authors.initials: V
authors.lastname: Pacáková
authors.forename: Z
authors.initials: Z
authors.lastname: Bosáková
authors.forename: K
authors.initials: K
authors.lastname: Stulík
mesh_terms: D000880:Anthraquinones / Q000032:analysis; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D004396:Coloring Agents / Q000032:analysis*; D049671:History, 18th Century; D009285:Naphthoquinones / Q000032:analysis; D013784:Textiles / Q000032:analysis* / Q000266:history
chemical_list: D000880:Anthraquinones; D004396:Coloring Agents; D009285:Naphthoquinones