Special feature: Perspective. Host–guest chemistry in the mass spectrometerJournal 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 spectrometryJournal 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
Identification of phototransformation products of sildenafil (Viagra) and its N‐demethylated human metabolite under simulated sunlightJournal 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
Matrix‐assisted laser desorption/ionization mass spectrometry (MALDI‐MS) of membrane proteins and non‐covalent complexesJournal 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 spectrometryJournal 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 spectrometryJournal 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