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ELECTRON IONIZATION-TANDEM MASS-SPECTROMETRY OF GLYCOSPHINGOLIPIDS .1. THE IDENTIFICATION OF COMPOUND-SPECIFIC SEQUENCE IONS IN THE COLLISION-INDUCED DISSOCIATION SPECTRA OF THE IMMONIUM IONS OF 2 ISOMERIC HEXAGLYCOSYLCERAMIDES
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UNSPECIFIED (1992) ELECTRON IONIZATION-TANDEM MASS-SPECTROMETRY OF GLYCOSPHINGOLIPIDS .1. THE IDENTIFICATION OF COMPOUND-SPECIFIC SEQUENCE IONS IN THE COLLISION-INDUCED DISSOCIATION SPECTRA OF THE IMMONIUM IONS OF 2 ISOMERIC HEXAGLYCOSYLCERAMIDES. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY, 3 (4). pp. 353-359. ISSN 1044-0305.
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Abstract
A permethylated-reduced hexaglycosylceramide in a complex glycolipid mixture isolated from a unique human tissue has been identified by using tandem mass spectrometry (MS/MS). The mass spectrum of this glycolipid mixture, obtained by using in-beam electron ionization, is very complex, and fragment ions derived from the hexaglycosylceramide cannot be distinguished from other ions. Tandem mass spectrometry using a four-sector mass spectrometer gave the mass spectrum of the immonium ion of the permethylated-reduced hexaglycosylceramide (m/z 1645.8), which is characteristic of its structure. Comparison of this MS/MS spectrum with those of two similarly derivatized blood group hexaglycosylceramide isomers permitted identification of the unknown glycolipid structure.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry Q Science > QC Physics |
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Journal or Publication Title: | JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY | ||||
Publisher: | ELSEVIER SCIENCE INC | ||||
ISSN: | 1044-0305 | ||||
Official Date: | May 1992 | ||||
Dates: |
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Volume: | 3 | ||||
Number: | 4 | ||||
Number of Pages: | 7 | ||||
Page Range: | pp. 353-359 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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