Application of fast atom bombardment with tandem mass spectrometry and liquid chromatography/mass spectrometry to the analysis of acylcarnitines in human urine, blood, and tissue.
Journal Article (Journal Article)
Using a precursor-ion scan function on a triple quadrupole mass spectrometer, acylcarnitines were detected in the target matrices at or below concentrations of 1 nmol per gram by fast atom bombardment mass spectrometry. Acylcarnitine profiles from patients with known metabolic disorders were consistent with previously acquired data. Putative acylcarnitine signals were confirmed in one case by administration of stable isotope-labeled carnitine, which equilibrated rapidly with the endogenous pool. The addition of a continuous flow system enabled rapid sequential analysis without operator intervention, indicating the potential for automation of the analytical procedure. Incorporation of a micro-LC column enabled on-line liquid chromatographic/mass spectrometric analysis of selected patient samples. Large-scale screening and quantitative analysis of urine or blood for diagnostic acylcarnitines are now practicable.
- Millington, DS; Norwood, DL; Kodo, N; Roe, CR; Inoue, F
- August 1, 1989
Volume / Issue
- 180 / 2
Start / End Page
- 331 - 339
International Standard Serial Number (ISSN)
Digital Object Identifier (DOI)
- United States