Journal of Mass Spectrometry

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Special feature: Perspective. Host–guest chemistry in the mass spectrometer
Journal of Mass Spectrometry - Tập 30 Số 7 - Trang 925-939 - 1995
Marco Vincenti
AbstractThe study of host–guest chemistry in the gas phase has been pursued systematically only in the last 5 years, after sporadic interest in the 1980s, despite extensive investigation of this chemistry in the condensed phase and the success encountered in several fields of application. Most gas‐phase studies have been performed under the controlled conditions th...... hiện toàn bộ
Determination of paraquat and diquat in human body fluids by high‐performance liquid chromatography/tandem mass spectrometry
Journal of Mass Spectrometry - Tập 39 Số 10 - Trang 1147-1152 - 2004
Xiao‐Pen Lee, Takeshi Kumazawa, Masaya Fujishiro, Chika Hasegawa, Tetsuya Arinobu, Hiroshi Seno, Akira Ishii, Keizo Sato
AbstractParaquat (PQ) and diquat (DQ) in human whole blood and urine were analyzed by high‐performance liquid chromatography/tandem mass spectrometry (HPLC/MS/MS) with positive ion electrospray ionization (ESI). The compounds were extracted with Sep‐Pak C18 cartridges from whole blood and urine samples containing ethyl paraquat as an internal s...... hiện toàn bộ
Screening, library‐assisted identification and validated quantification of fifteen neuroleptics and three of their metabolites in plasma by liquid chromatography/mass spectrometry with atmospheric pressure chemical ionization
Journal of Mass Spectrometry - Tập 38 Số 3 - Trang 283-295 - 2003
Carsten Kratzsch, Frank T. Peters, Thomas Kræmer, Achim Weber, Hans H. Maurer
AbstractA liquid chromatographic/mass spectrometric assay with atmospheric pressure chemical ionization (APCI‐LC/MS) is presented for the fast and reliable screening and identification and for the precise and sensitive quantification of 15 neuroleptic (antipsychotic) drugs and three of their relevant metabolites in plasma. It allows confirmation of the diagnosis of...... hiện toàn bộ
On the determination of molecular weight distributions of asphaltenes and their aggregates in laser desorption ionization experiments
Journal of Mass Spectrometry - Tập 41 Số 7 - Trang 960-968 - 2006
Ana R. Hortal, Bruno Martı́nez−Haya, Marcos D. Lobato, José M. Pedrosa, S. Lago
AbstractMolecular weight distributions (MWD) of asphaltenes and their aggregates have been investigated in laser desorption ionization (LDI) mass spectrometric experiments. A systematic investigation of the dependence of the measured MWD on the asphaltene sample density and on the laser pulse energy allows the assignment of most probable molecular weights within 30...... hiện toàn bộ
Mass spectral studies on prostaglandins. V—Deuterated analogues of prostaglandin F2α
Journal of Mass Spectrometry - Tập 5 Số 9 - Trang 544-550 - 1978
Gyula Horváth, Gábor Ambrus
Identification of phototransformation products of sildenafil (Viagra) and its N‐demethylated human metabolite under simulated sunlight
Journal of Mass Spectrometry - Tập 47 Số 6 - Trang 701-711 - 2012
Peter Eichhorn, Sandra Pérez, Jaume Aceña, Piero R. Gardinali, José Luı́s Abad, ‪Damià Barceló
Recent publications on pharmaceutical monitoring are increasingly covering the field of illicit drugs and lately the forensic evaluation of designing illegal analogs of lifestyle drugs like the phosphodiesterase type 5 (PDE‐5) inhibitors Viagra (sildenafil), Levitra (vardenafil) and Cialis (tadalafil). Recently, the presence of all three erectile dysfunction treatment drugs has been report...... hiện toàn bộ
Quantification of dideoxycytidine in human plasma by gas chromatography/mass spectrometry
Journal of Mass Spectrometry - Tập 17 Số 5 - Trang 399-404 - 1988
F. Rubio, Theodore Crews, William A. Garland, Elaine K. Fukuda
Matrix‐assisted laser desorption/ionization mass spectrometry (MALDI‐MS) of membrane proteins and non‐covalent complexes
Journal of Mass Spectrometry - Tập 30 Số 10 - Trang 1462-1468 - 1995
Burkhard Rosinke, Kerstin Strupat, Franz Hillenkamp, Jürg P. Rosenbusch, Norbert A. Dencher, Ulrike Krüger, Hans‐Joachim Galla
AbstractMatrix‐assisted laser desorption/ionization (MALDI) mass spectra and methods to improve their quality are reported for three hydrophobic, membrane‐bound proteins: porin from Escherichia coli, bacteriorhodopsin from Halobacterium salinarium and cholesterolesterase from Pseudomonas fluorescens...... hiện toàn bộ
Methods and limitations of ‘clumped’ CO2 isotope (Δ47) analysis by gas‐source isotope ratio mass spectrometry
Journal of Mass Spectrometry - Tập 44 Số 9 - Trang 1318-1329 - 2009
Katharine W. Huntington, John M. Eiler, Hagit P. Affek, Weifu Guo, Magali Bonifacie, Laurence Y. Yeung, Nivedita Thiagarajan, Benjamin H. Passey, Aradhna Tripati, Mathieu Daëron, Rosemarie E Came
AbstractThe geochemistry of multiply substituted isotopologues (‘clumped‐isotope’ geochemistry) examines the abundances in natural materials of molecules, formula units or moieties that contain more than one rare isotope (e.g. 13C18O16O, 18O18O, 15... hiện toàn bộ
The analysis of industrial synthetic polymers by electrospray droplet impact/secondary ion mass spectrometry
Journal of Mass Spectrometry - Tập 44 Số 6 - Trang 945-951 - 2009
Daiki Asakawa, Lee Chuin Chen, Kenzo Hiraoka
AbstractElectrospray droplet impact (EDI)/secondary ion mass spectrometry (SIMS) is a new desorption/ionization technique for mass spectrometry in which highly charged water clusters produced from the atmospheric‐pressure electrospray are accelerated in vacuum by several kV and impact the sample deposited on the metal substrate. In this study, several industrial sy...... hiện toàn bộ
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