Structure elucidation of sildenafil analogues in herbal products. [PDF]
The structure of unknown compounds present in herbal products was elucidated using liquid chromatography-electrospray ionization-mass spectrometry, direct-infusion electrospray ionization-mass spectrometry, and nuclear magnetic resonance.
Bakker, F+7 more
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Liquid chromatography-tandem mass spectrometry - Application in the clinical laboratory [PDF]
This review provides a concise survey of liquid chromatography tandem mass spectrometry (LCTMS) as an emerging technology in clinical chemistry. The combination of two mass spectrometers with an interposed collision cell characterizes LCTMS as an ...
Ford RE+7 more
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Probing metal ion binding and conformational properties of the colicin E9 endonuclease by electrospray ionization time-of-flight mass spectrometry [PDF]
Nano-electrospray ionization time-of-flight mass spectrometry (ESI-MS) was used to study the conformational consequences of metal ion binding to the colicin E9 endonuclease (E9 DNase) by taking advantage of the unique capability of ESI-MS to allow ...
HECK, ALBERT J.R.+6 more
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Electrospray Ionization Mass Spectrometry for Mechanism Analysis of Metal Ion Complexation and Photoionization of Malachite Green Derivatives Incorporating a Crown Ether Moiety [PDF]
Electrospray-ionization mass spectrometry using a photoirradiation interface has been successfully applied to the investigation of metal-ion complexation and photoionization of crowned Malachite Green leuconitrile derivatives in solution.
Arakawa Ryuichi+7 more
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Neutral particle Mass Spectrometry with Nanomechanical Systems [PDF]
Current approaches to Mass Spectrometry (MS) require ionization of the analytes of interest. For high-mass species, the resulting charge state distribution can be complex and difficult to interpret correctly.
Alava, Thomas+9 more
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Degrees of freedom effect on fragmentation in tandem mass spectrometry of singly charged supramolecular aggregates of sodium sulfonates [PDF]
The characteristic collision energy (CCE) to obtain 50% fragmentation of positively and negatively single charged non-covalent clusters has been measured.
Bongiorno, David+7 more
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Current developments in LC-MS for pharmaceutical analysis [PDF]
The current developments in liquid chromatography-mass spectrometry (LC-MS) and its applications to the analysis of pharmaceuticals are reviewed. Various mass spectrometric techniques, including electrospray and nanospray ionization, atmospheric pressure
Lim, Chang-Kee, Lord, Gwyn A.
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Evaporation and Discharge Dynamics of Highly Charged Multicomponent Droplets Generated by Electrospray Ionization [PDF]
We investigate the Rayleigh discharge and evaporation dynamics of highly charged two-component droplets consisting principally of methanol with 2-methoxyethanol, tert-butanol, or m-nitrobenzyl alcohol.
Beauchamp, J. L., Grimm, Ronald L.
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Recent advances in expanding the coverage of the lipidome [PDF]
The lipidome comprises a large array of molecules with diverse physicochemical properties. Lipids are structural components of cells, act as a source of energy, and function as signaling mediators.
Kamphorst, Jurre J., Tumanov, Sergey
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The Complete Structure of the Core Oligosaccharide from Edwardsiella tarda EIB 202 Lipopolysaccharide [PDF]
The chemical structure and genomics of the lipopolysaccharide (LPS) core oligosaccharide of pathogenic Edwardsiella tarda strain EIB 202 were studied for the first time.
De Mendoza Barberá, Elena+5 more
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