Results 331 to 340 of about 544,006 (376)

Integrated, nontargeted ultrahigh performance liquid chromatography/electrospray ionization tandem mass spectrometry platform for the identification and relative quantification of the small-molecule complement of biological systems.

Analytical Chemistry, 2009
To address the challenges associated with metabolomics analyses, such as identification of chemical structures and elimination of experimental artifacts, we developed a platform that integrated the chemical analysis, including identification and relative
A. M. Evans, Corey D. DeHaven, T. Barrett, Matt Mitchell, E. Milgram   +4 more
semanticscholar   +1 more source

Mass spectrometry using electrospray ionization

Nature Reviews Methods Primers, 2023
G. R. D. Prabhu, E. Williams, M. Wilm, P. L. Urban   +3 more
semanticscholar   +1 more source

Characterization of Archaeological Beeswax by Electron Ionization and Electrospray Ionization Mass Spectrometry

Analytical Chemistry, 2002
To better detect and identify beeswax in ancient organic residues from archaeological remains, we developed a new analytical methodology consisting of the analysis of (i) the trimethylsilylated organic extract by GC/MS and (ii) the crude extract by ESI-MS.
B. Garnier, Nicolas, Cren-Olivé, Cécile, Rolando, Christian, Regert, Martine   +3 more
openaire   +5 more sources

The Application of Electrospray Ionization Mass Spectrometry to Homogeneous Catalysis

, 2014
Electrospray ionization mass spectrometry (ESI-MS) is increasingly being used as a tool to gain mechanistic insights into homogeneous metal-catalyzed reactions.
Krista L Vikse, Z. Ahmadi, J. McIndoe
semanticscholar   +1 more source

Understanding the molecular signatures in leaves and flowers by desorption electrospray ionization mass spectrometry (DESI MS) imaging.

Journal of Agricultural and Food Chemistry, 2013
The difference in size, shape, and chemical cues of leaves and flowers display the underlying genetic makeup and their interactions with the environment.
R. Hemalatha, T. Pradeep
semanticscholar   +1 more source

Electrospray Ionization Tandem Mass Spectrometry of Phosphonate Peptides

European Journal of Mass Spectrometry, 2010
Phosphonate peptides were synthesized and investigated by positive ion electrospray ionization mass spectrometry in conjunction with tandem mass spectrometry. It was found that, for the sodiated adduct, there were two rearrangement reactions. In path A, there was C–C covalent bond cleavage with consecutive migration of a hydrogen atom to lose the ...
Zheng, Z. Y., Liu, Y., Cai, Z. S., Zhang, H. W., Fang, H., Fang, M. J., Zhao, Y. F.   +6 more
openaire   +4 more sources

Protein analysis by desorption electrospray ionization mass spectrometry and related methods.

Journal of Mass Spectrometry, 2013
Desorption electrospray ionization mass spectrometry (DESI-MS) requires little to no sample preparation and has been successfully applied to the study of biologically significant macromolecules such as proteins. However, DESI-MS and other ambient methods
K. Douglass, A. Venter
semanticscholar   +1 more source

Toward single-cell analysis by plume collimation in laser ablation electrospray ionization mass spectrometry.

Analytical Chemistry, 2013
Ambient ionization methods for mass spectrometry have enabled the in situ and in vivo analysis of biological tissues and cells. When an etched optical fiber is used to deliver laser energy to a sample in laser ablation electrospray ionization (LAESI ...
Jessica A. Stolee, A. Vertes
semanticscholar   +1 more source

Capillary electrophoresis-electrospray ionization-mass spectrometry

Journal of Chromatography A, 1989
Abstract New developments are described in the area of capillary electrophoresis combined with electrospray ionization-mass spectrometry (CE—ESI-MSD), a promising new method for the separation and mass spectrometric characterization of labile, polar or ionic constituents of biological mixtures.
Charles G. Edmonds, Charles J. Barinaga, Harold R. Udseth, Joseph A. Loo, Richard D. Smith   +4 more
openaire   +2 more sources

Direct Coupling of Solid-Phase Microextraction with Mass Spectrometry: Sub-pg/g Sensitivity Achieved Using a Dielectric Barrier Discharge Ionization Source.

Analytical Chemistry, 2016
We report a new strategy for the direct coupling of Solid-Phase Microextraction (SPME) with mass spectrometry, based on thermal desorption of analytes extracted on the fibers, followed by ionization by a dielectric barrier discharge ionization (DBDI ...
M. Mirabelli, Jan-Christoph Wolf, R. Zenobi   +2 more
semanticscholar   +1 more source