title: Separation and detection of 4-hexadecylaniline maltooligosaccharide derivatives with packed capillary liquid chromatography-frit fast atom bombardment-mass spectrometry.
abstract: A LC-MS method is under development for the separation and detection of mixtures of native glycolipids and of oligosaccharide derivatives. The LC system is based on slurry-packed capillary columns. Frit fast atom bombardment (frit-FAB) is used as the LC-MS interface and ionisation technique and the column is connected to the frit via a 50 microns I.D. fused-silica capillary liner. Post column addition of matrix is achieved using a 50 microns I.D. fused-silica capillary liner with 2.5% (v/v) matrix solution. The two liners are joined through a septum and end side by side against the frit. The detection limit was found to be less than 1 pmole in the negative ion mode. A mixture of tetra to deca maltooligosaccharides reductively aminated with 4-hexadecylaniline (M4-10-HDA) was separated on a straight phase silica column using gradient elution.
authors.affiliation: Department of Medical Biochemistry, University of Göteborg, Sweden.
authors.forename: L
authors.initials: L
authors.lastname: Johansson
authors.forename: H
authors.initials: H
authors.lastname: Karlsson
authors.forename: K A
authors.initials: KA
authors.lastname: Karlsson
mesh_terms: D000814:Aniline Compounds; D002197:Capillary Action; D002240:Carbohydrate Sequence; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D008320:Maltose / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification*; D008969:Molecular Sequence Data; D009844:Oligosaccharides / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification*; D016339:Spectrometry, Mass, Fast Atom Bombardment
chemical_list: C097759:4-hexadecylaniline; D000814:Aniline Compounds; D009844:Oligosaccharides; D008320:Maltose