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Off‐line capillary electrophoresis/fully automated nanoelectrospray chip quadrupole time‐of‐flight mass spectrometry and tandem mass spectrometry for glycoconjugate analysis
Author(s) -
Bindila Laura,
Almeida Reinaldo,
Sterling Alistair,
Allen Mark,
PeterKatalinić Jasna,
Zamfir Alina
Publication year - 2004
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/jms.707
Subject(s) - chemistry , quadrupole time of flight , capillary electrophoresis , mass spectrometry , chromatography , tandem mass spectrometry , tandem , quadrupole , glycoconjugate , analytical chemistry (journal) , time of flight mass spectrometry , capillary electrophoresis–mass spectrometry , electrospray ionization , ionization , ion , biochemistry , materials science , physics , atomic physics , composite material , organic chemistry
Implementation and optimization of an off‐line capillary electrophoresis (CE)/(−)nanoESIchip‐quadrupole time‐of‐flight (QTOF) mass spectrometric (MS) and tandem MS system for compositional mapping and structural investigation of components in complex carbohydrate mixtures is described. The approach was developed for glycoscreening and applied to O ‐glycosylated peptides from urine of a patient suffering from α‐ N ‐acetylhexosaminidase deficiency, known as Schindler's disease. The fundamental issue of sensitivity, previously representing a serious drawback of the off‐line CE/MS analysis, could be positively addressed by the off‐line conjunction of CE with automated chip‐based ESI‐QTOF‐MS to provide flexibility for CE/chip MS coupling and enhance structural elucidation of single components in heterogeneous mixtures. Copyright © 2004 John Wiley & Sons, Ltd.