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Use of positive ion fast atom bombardment mass spectrometry for rapid identification of a bile alcohol glucuronide isolated from cerebrotendinous xanthomatosis patients

Journal Article · · Steroids; (USA)
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  1. UMDNJ-New Jersey Medical School, Newark (USA)
The identification of a major biliary and plasma bile alcohol glucuronide, 5 beta-cholestane-3 alpha, 7 alpha, 12 alpha, 25-tetrol-3-0-beta-D-glucuronide, present in cerebrotendinous xanthomatosis (CTX) patients, was investigated by positive ion fast atom bombardment mass spectrometry (FAB-MS). The spectrum was characterized by abundant ions formed by attachment of a proton, (M + H)+, or of alkali ions, (M + Na)+ and (M + 39K)+, to the glucuronide salt. These ions allowed an unambiguous deduction of the molecular weight of the sample. It is suggested that FAB-MS could be used in the rapid diagnosis of CTX.
OSTI ID:
6896155
Journal Information:
Steroids; (USA), Journal Name: Steroids; (USA) Vol. 55:2; ISSN 0039-128X; ISSN STEDA
Country of Publication:
United States
Language:
English