title: Atmospheric pressure chemical ionisation liquid chromatography/mass spectrometry of the ultraviolet screening pigment scytonemin: characteristic fragmentations.
abstract: Atmospheric pressure chemical ionisation reversed-phase high-performance liquid chromatography/multistage mass spectrometry has been used to study the mass spectral fragmentation of the cyanobacterial sheath pigment scytonemin and its reduced counterpart. The two pigments exhibit characteristic fragment ions in their MS2 and MS3 spectra that are of value in confirming the identification of the structures in extracts from natural environments.
authors.affiliation: Department of Chemistry, University of York, Heslington, York YO10 5DD, UK.
authors.forename: Angela H
authors.initials: AH
authors.lastname: Squier
authors.forename: Ruth L
authors.initials: RL
authors.lastname: Airs
authors.forename: Dominic A
authors.initials: DA
authors.lastname: Hodgson
authors.forename: Brendan J
authors.initials: BJ
authors.lastname: Keely
mesh_terms: D001274:Atmospheric Pressure; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D000458:Cyanobacteria / Q000737:chemistry; D007211:Indoles / Q000032:analysis / Q000737:chemistry*; D010636:Phenols / Q000032:analysis / Q000737:chemistry*; D010860:Pigments, Biological / Q000032:analysis / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*
chemical_list: D007211:Indoles; D010636:Phenols; D010860:Pigments, Biological; C083368:scytonemin