title: Ultraperformance liquid chromatography with electrospray ionization ion trap mass spectrometry for chondroitin disaccharide analysis.
abstract: Chondroitin sulfate (CS) has an important role in cell division, in the central nervous system, and in joint-related pathologies such as osteoarthritis. Due to the complex chemical structure and biological importance of CS, simple, sensitive, high resolution, and robust analytical methods are needed for the analysis of CS disaccharides and oligosaccharides. An ion-pairing, reversed-phase, ultraperformance liquid chromatography (IPRP-UPLC) separation, coupled to electrospray ionization mass spectrometry with an ion trap mass analyzer, was applied for the analyses of CS-derived disaccharides. UPLC separation technology uses small particle diameter, short column length, and elevated column temperature to obtain high resolution and sensitivity. Hexylamine (15 mM) was selected as the optimal ion-pairing reagent.
authors.affiliation: Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA.
authors.forename: Kemal
authors.initials: K
authors.lastname: Solakyildirim
authors.forename: Zhenqing
authors.initials: Z
authors.lastname: Zhang
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Linhardt
mesh_terms: D000588:Amines / Q000737:chemistry; D002809:Chondroitin Sulfates / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D004187:Disaccharides / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification; D010003:Osteoarthritis / Q000473:pathology; D020005:Propanols / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D006845:Hydrocarbons, Fluorinated
chemical_list: D000588:Amines; D002809:Chondroitin Sulfates; D004187:Disaccharides; D020005:Propanols; C001337:hexafluoroisopropanol; D006845:Hydrocarbons, Fluorinated; C007940:hexylamine