title: Laser-induced fluorescence as a powerful detection tool for capillary electrophoretic analysis of heparin/heparan sulfate disaccharides.
abstract: In quest for high sensitivities necessary for determining the disaccharide composition of heparin/heparan sulfate present in trace amounts in biologic samples, an ultrahighly sensitive capillary electrophoresis (CE) method using laser-induced fluorescence (LIF) detection was developed. Heparin/heparan sulfate-derived Delta-disaccharides were derivatized with the fluorophore 2-aminoacridone and resolved by a reversed-polarity CE method. Estimation of the limit of detection in concentration term and limit of quantitation showed that LIF detection of AMAC-derivatives of Delta-disaccharides resulted in 27-744 times higher sensitivity as compared to those detected by UV at 255 nm. These data suggest that CE-LIF is a powerful tool to quantify minute amounts of heparin/heparan sulfate disaccharides.
authors.affiliation: Department of Chemistry, Section of Organic Chemistry, Biochemistry and Natural Products, Laboratory of Biochemistry, University of Patras, 261 10 Patras, Greece.
authors.forename: Maria
authors.initials: M
authors.lastname: Militsopoulou
authors.forename: Céline
authors.initials: C
authors.lastname: Lecomte
authors.forename: Christopher
authors.initials: C
authors.lastname: Bayle
authors.forename: Francois
authors.initials: F
authors.lastname: Couderc
authors.forename: Nikos K
authors.initials: NK
authors.lastname: Karamanos
mesh_terms: D004187:Disaccharides / Q000032:analysis*; D019075:Electrophoresis, Capillary / Q000379:methods*; D006493:Heparin / Q000032:analysis*; D006497:Heparan Sulfate / Q000032:analysis*; D007834:Lasers; D012680:Sensitivity and Specificity; D013050:Spectrometry, Fluorescence / Q000379:methods*
chemical_list: D004187:Disaccharides; D006493:Heparin; D006497:Heparan Sulfate