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Electrospray ionization mass spectrometry
2001Abstract Characterization of protein-ligand interactions involves the determination of stoichiometry, affinity, and conformational changes associated with such interactions. Mass spectrometry is rapidly emerging as an important and powerful new tool in this area to complement the wealth of other techniques described in these volumes. The
T J Hill, P J Derrick
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Electrospray Ionization Mass Spectrometry of Oligonucleotides
Current Protocols in Nucleic Acid Chemistry, 2008AbstractBecause of the high molecular weights and thermal lability of biomolecules such as nucleic acids and protein, they can be difficult to analyze by mass spectrometry. Such analyses require a “soft” ionization method that is capable of generating intact molecular ions.
Colette M, Castleberry +2 more
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Electrospray tandem mass spectrometry of epipolythiodioxopiperazines
Journal of Mass Spectrometry, 2007AbstractLow‐energy collision‐induced electrospray ionization tandem mass spectrometry ESI‐CID‐MS/MS (in the positive ion mode) was used for the structural characterization of a series of five representative epioplythiodioxopipreazines: dethiotetra(methylthio)chemotin, chaetocochins A, B and C, and chemotin isolated from the fungus Chaetomium cochliodes.
Zhi-Jun, Wu +5 more
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Electrospray ionization mass spectrometry of metalloporphyrins
Journal of Mass Spectrometry, 1998The magnesium, nickel, copper, zinc and vanadium metalloporphyrins from octaethylporphyrin, etioporphyrin I and tetraphenylporphyrin were characterized using electrospray ionization mass spectrometry (ESI-MS). The ion abundance of each of the porphyrins present in binary mixtures was monitored as a function of the porphyrin concentration and is ...
V E, Vandell, P A, Limbach
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Electrospray mass spectrometry for protein characterization
Trends in Biochemical Sciences, 1995Mass spectrometry is a venerable analytical tool that has been used for some time in biochemistry for the analysis of small molecules, such as steroids. More recently, physicists have solved the problems associated with vaporizing and ionizing proteins and peptides, thereby allowing mass spectrometry to take on new roles in investigating protein ...
M, Mann, M, Wilm
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Electrospray tandem mass spectrometry of aminochromes
Rapid Communications in Mass Spectrometry, 2001Abstract The catecholamines adrenaline, noradrenaline, dopamine, dopa and isoprenaline were oxidized into their respective aminochromes: adrenochrome, noradrenochrome, dopaminochrome, dopachrome and isoprenochrome.
F, Lemos-Amado +7 more
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Electrospray Tandem Mass Spectrometry of Nucleotides
Rapid Communications in Mass Spectrometry, 1996The tandem mass spectra (MS/MS) following electrospray ionization of nucleotides (from 2- to 6-mers) have been examined under a range of collision and ionization conditions. In general, abundant peaks due to the free bases and phosphate groups are observed, along with a limited number of sequence ions.
J, Boschenok, M M, Sheil
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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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Microdevices for Electrospray Mass Spectrometry
1998Two designs of microdevices for microanalysis by mass spectrometry have been developed. In both cases the electrospray is used for sample ionization and transfer of the analytes from the microdevice into the mass spectrometer. The first design incorporates a capillary electrophoresis separation channel and a micromachined pneumatic nebulizer for ...
F. Foret +4 more
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