The laser desorption/laser ionization mass spectra of some methylated xanthines and the laser desorption of caffeine and theophylline from thin layer chromatography plates
- 4 February 1993
- journal article
- Published by Elsevier in International Journal of Mass Spectrometry and Ion Processes
- Vol. 123 (2), 125-131
- https://doi.org/10.1016/0168-1176(93)87006-e
Abstract
No abstract availableKeywords
This publication has 12 references indexed in Scilit:
- The laser desorption/laser ionization mass spectra of some indole derivatives and alkaloidsInternational Journal of Mass Spectrometry and Ion Processes, 1992
- Identification of caffeine and its metabolites in human urine extracts by electron impact ionization tandem mass spectrometryJournal of Mass Spectrometry, 1991
- Laser mass spectrometric analysis of compounds separated by thin-layer chromatographyAnalytical Chemistry, 1989
- Resonant two-photon ionization spectroscopic analysis of thin-layer chromatography using pulsed laser desorption/volatilization into supersonic jet expansionsAnalytical Chemistry, 1989
- Characteristics of a thin-layer chromatogram scanner-mass spectrometer systemAnalytical Chemistry, 1985
- Determination of drugs in biological samples by thin- layer chromatography tandem mass spectrometryJournal of Chromatography A, 1983
- Deuteromethylation of dimethylxanthines: A gas chromatographic mass spectrometric method for confirmatory analysis in horse urine extractsJournal of Mass Spectrometry, 1982
- Study of theophylline metabolism in premature human newborns using stable isotope labellingJournal of Mass Spectrometry, 1980
- High performance liquid chromatographic and mass spectrometric identification of dimethylxanthine metabolites of caffeine in human plasmaJournal of Mass Spectrometry, 1977
- Investigation of direct thin-layer chromatography-mass spectrometry as a drug analysis techniqueJournal of Chromatography A, 1975