Results 271 to 280 of about 553,070 (330)
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Monitoring Glycation of Lysozyme by Electrospray Ionization Mass Spectrometry
Journal of Agricultural and Food Chemistry, 2000Electrospray ionization mass spectrometry (ESI-MS) was used to study the glycation of lysozyme by D-glucose (LZM-G) and by D-fructose (LZM-F) under dry heating conditions in the presence and in the absence of oxygen. ESI-MS proved to be a precise method for monitoring protein glycation with respect to following the extent of glycation and changes in ...
Yeboah, Faustinus K. +4 more
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Amino acid analysis by capillary electrophoresis electrospray ionization mass spectrometry.
Analytical Chemistry, 2000A method for the determination of underivatized amino acids based on capillary electrophoresis coupled to electrospray ionization mass spectrometry (CE-ESI-MS) is described. To analyze free amino acids simultaneously a low acidic pH condition was used to
T. Soga, D. Heiger
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Electrode‐assisted desorption electrospray ionization mass spectrometry
Journal of Mass Spectrometry, 2010AbstractA new ion source has been developed for rapid, noncontact analysis of materials at ambient conditions. The method provides desorption of analytes under ambient conditions directly from different surfaces with little or no sample preparation. The new method, termed electrode‐assisted desorption electrospray ionization (EADESI), is on the basis ...
Özdemir A, Chen CH.
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Sample Preparation for Probe Electrospray Ionization Mass Spectrometry
Journal of Visualized Experiments, 2020Mass spectrometry (MS) is a powerful tool in analytical chemistry because it provides very accurate information about molecules, such as mass-to-charge ratios (m/z), which are useful to deduce molecular weights and structures. While it is essentially a destructive analytical method, recent advancements in the ambient ionization technique have enabled ...
Hiroshi Tanihata +2 more
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Analytical Chemistry, 2002
A method for simultaneous determination of anionic metabolites based on capillary electrophoresis (CE) coupled to electrospray ionization mass spectrometry is described. To prevent current drop by the system, electroosmotic flow (EOF) reversal by using a
T. Soga +5 more
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A method for simultaneous determination of anionic metabolites based on capillary electrophoresis (CE) coupled to electrospray ionization mass spectrometry is described. To prevent current drop by the system, electroosmotic flow (EOF) reversal by using a
T. Soga +5 more
semanticscholar +1 more source
Rapid Communications in Mass Spectrometry, 2017
RationaleAlthough it is claimed that desorption electrospray ionization (DESI) causes less ion suppression effects than electrospray ionization (ESI), a related investigation with quantification measurement of ion suppression effects is absent. Herein, a comparative analysis of ion suppression effects between DESI and ESI was conducted, with the aiming
Zheng Wang, Haijing Zhu, Guangming Huang
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RationaleAlthough it is claimed that desorption electrospray ionization (DESI) causes less ion suppression effects than electrospray ionization (ESI), a related investigation with quantification measurement of ion suppression effects is absent. Herein, a comparative analysis of ion suppression effects between DESI and ESI was conducted, with the aiming
Zheng Wang, Haijing Zhu, Guangming Huang
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The Application of Electrospray Ionization Mass Spectrometry to Homogeneous Catalysis
, 2014Electrospray 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
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Electrospray ionization mass spectrometry of some β‐agonists
Rapid Communications in Mass Spectrometry, 1992AbstractPositive‐ion electrospray spectra of some β‐agonists have been acquired under various ion acceleration conditions. Collisional activation of β‐agonists allows control of their mass spectral patterns, i.e., the molecular ion or several characteristic fragmentations can be favored by changing the energy of the ions extracted into the vacuum ...
Debrauwer, Laurent, Bories, G.
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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
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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
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Electrospray ionization mass spectrometry of biomolecules
Nature, 1990The novel ionization technique of electrospray now allows the convenient mass spectrometric analysis of proteins and other biological molecules directly from liquids The molecular weights of protein can be determined to better than 0.01 per cent mass accuracy.
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