Analysis of Oligonucleotides by Electrospray Ionization Mass Spectrometry [PDF]
AbstractBecause 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.
Polo, Lenore M., Limbach, Patrick A.
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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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Quantitative measurement of different ceramide species from crude cellular extracts by electrospray ionization tandem mass spectrometry (ESI-MS/MS) [PDF]
Ceramide (CER) is an important signaling molecule involved in a variety of cellular processes, including differentiation, cell growth, and apoptosis.
G. Liebisch+7 more
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Advances in MALDI Mass Spectrometry Imaging Single Cell and Tissues
Compared with conventional optical microscopy techniques, mass spectrometry imaging (MSI) or imaging mass spectrometry (IMS) is a powerful, label-free analytical technique, which can sensitively and simultaneously detect, quantify, and map hundreds of ...
Xiaoping Zhu+6 more
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Desorption Electrospray Ionization-Mass Spectrometry of Proteins [PDF]
Desorption electrospray ionization-mass spectrometry (DESI-MS) was evaluated for the detection of proteins ranging in molecular mass from 12 to 66 kDa. Proteins were uniformly deposited on a solid surface without pretreatment and analyzed with a DESI source coupled to a quadrupole ion trap mass spectrometer.
Richard T. Mayer+4 more
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Applications of Tandem Mass Spectrometry (MS/MS) in Protein Analysis for Biomedical Research
Mass Spectrometry (MS) allows the analysis of proteins and peptides through a variety of methods, such as Electrospray Ionization-Mass Spectrometry (ESI-MS) or Matrix-Assisted Laser Desorption Ionization-Mass Spectrometry (MALDI-MS).
Anca-Narcisa Neagu+5 more
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Is Charge Reduction in ESI Really Necessary? [PDF]
The technique of charge reduction electrospray mass spectrometry (CREMS), which can reduce the charge state complexity produced in electrospray ionization (ESI), is ...
Smith, Lloyd M.
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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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Solutions of [hydroxy(tosyloxy)iodo]benzene (HTIB or Koser's reagent) in acetonitrile were analyzed using high resolution electrospray ionization mass spectrometry (ESI-MS) and electrospray ionization tandem mass spectrometry (ESI-MS/MS) under different ...
Ramon S. Vasconcelos+2 more
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False positives and the detection of cyclodextrin inclusion complexes by electrospray mass spectrometry [PDF]
The results of previous works that have claimed to detect cyclodextrin inclusion complexes via the “soft” ionization technique of electrospray ionization mass spectrometry are revisited.
Cunniff, John B., Vouros, Paul
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