title: Application of a new zwitterionic hydrophilic interaction chromatography column for determination of paralytic shellfish poisoning toxins.
abstract: A novel method for paralytic shellfish poisoning (PSP) toxins which is based on the chromatographic separation of the toxins using a zwitterionic (ZIC) hydrophilic interaction chromatography (HILIC) column is presented. Efficient retention of the polar PSP toxins on the ZIC-HILIC column allowed their selective and sensitive determination by the application of mass spectrometric (MS/MS) detection or as derivatives after oxidation prior to fluorescence detection (FD). Low buffer concentrations and the omission of ion-pair reagents decreased the limits of detection (LODs) by MS/MS analysis and showed a good linearity for both methods of detection. This method can be applied for the qualitative and quantitative determination of PSP toxins in various types of phytoplankton, and for the routine analysis of seafood.
authors.affiliation: Institute for Nutrition, Department of Food Chemistry, Friedrich-Schiller-University of Jena, Dornburger Strasse 25, D-07743 Jena, Germany. marc.diener@uni-jena.de
authors.forename: Marc
authors.initials: M
authors.lastname: Diener
authors.forename: Katrin
authors.initials: K
authors.lastname: Erler
authors.forename: Bernd
authors.initials: B
authors.lastname: Christian
authors.forename: Bernd
authors.initials: B
authors.lastname: Luckas
mesh_terms: D000818:Animals; D002845:Chromatography / Q000379:methods*; D002853:Chromatography, Liquid / Q000379:methods; D007477:Ions; D008387:Marine Toxins / Q000032:analysis* / Q000302:isolation & purification; D013058:Mass Spectrometry; D008956:Models, Chemical; D008968:Molecular Conformation; D010839:Phytoplankton / Q000378:metabolism; D015203:Reproducibility of Results; D012530:Saxitoxin / Q000032:analysis* / Q000302:isolation & purification; D012758:Shellfish; D013050:Spectrometry, Fluorescence; D013997:Time Factors
chemical_list: D007477:Ions; D008387:Marine Toxins; D012530:Saxitoxin