title: Analysis of urinary nucleosides. II. Comparison of mass spectrometric methods for the analysis of urinary nucleosides.
abstract: Qualitative and quantitative analyses of urinary nucleosides have diagnostic potential as tumour markers. We have developed separation techniques linked to mass spectrometric detection in order to overcome the problems associated with past identification and quantitation methods. The three methods of analysis utilised were: gas chromatography/mass spectrometry (GC/MS), high-performance liquid chromatography/ion-trap mass spectrometry (HPLC/ITMS) and capillary liquid chromatography/triple quadrupole mass spectrometry (CapLC/TQMS). Here we compare the relative effectiveness of each of the techniques for subsequent application in the systematic study of urinary nucleoside profiles in cancer patients. All three methods proved to be valuable techniques for such urinary nucleoside analyses, and a combination rather than one single choice is concluded as the ideal.
authors.affiliation: Biochemistry Group, School of Biological Sciences, Wallace Building, University of Wales Swansea, Singleton Park, Swansea SA2 8PP, UK.
authors.forename: E
authors.initials: E
authors.lastname: Dudley
authors.forename: F
authors.initials: F
authors.lastname: Lemiere
authors.forename: W
authors.initials: W
authors.lastname: Van Dongen
authors.forename: J I
authors.initials: JI
authors.lastname: Langridge
authors.forename: S
authors.initials: S
authors.lastname: El-Sharkawi
authors.forename: D E
authors.initials: DE
authors.lastname: Games
authors.forename: E L
authors.initials: EL
authors.lastname: Esmans
authors.forename: R P
authors.initials: RP
authors.lastname: Newton
mesh_terms: D002851:Chromatography, High Pressure Liquid; D019075:Electrophoresis, Capillary; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D013058:Mass Spectrometry; D009369:Neoplasms / Q000652:urine; D009705:Nucleosides / Q000652:urine*
chemical_list: D009705:Nucleosides