Nanobubbles in Electrospray Ionization Mass Spectrometry. [PDF]
Anal ChemNanobubbles (NBs) are very small gas-filled cavities in solvents, and when their sizes reach diameters around 200 nm, they remain in solution for extended periods of time, featuring special chemical and physical properties. Here, we investigate the application of NBs in electrospray ionization.
Joseph G, Binny B, Venter AR.
europepmc +3 more sources
Structure elucidation of sildenafil analogues in herbal products. [PDF]
, 2004 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
core +1 more source
Degrees of freedom effect on fragmentation in tandem mass spectrometry of singly charged supramolecular aggregates of sodium sulfonates [PDF]
, 2013 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
core +2 more sources
Evaporation and Discharge Dynamics of Highly Charged Multicomponent Droplets Generated by Electrospray Ionization [PDF]
, 2010 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.
core +1 more source
Applications of Direct Injection Soft Chemical Ionisation-Mass Spectrometry for the Detection of Pre-blast Smokeless Powder Organic Additives [PDF]
, 2019 Analysis of smokeless powders is of interest from forensics and security perspectives. This article reports the detection of smokeless powder organic additives (in their pre-detonation condition), namely the stabiliser diphenylamine and its derivatives 2-
A Jordan +45 more
core +2 more sources
Analysis of Oligonucleotides by Electrospray Ionization Mass Spectrometry [PDF]
Current Protocols in Nucleic Acid Chemistry, 2000 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.
openaire +3 more sources
Relative affinity constants by electrospray ionization and Fourier transform ion cyclotron resonance mass spectrometry: calmodulin binding to peptide analogs of myosin light chain kinase [PDF]
, 2003 Synthetic RS20 peptide and a set of its point-mutated peptide analogs have been used to analyze the interactions between calmodulin (CaM) and the CaM-binding sequence of smooth-muscle myosin light chain kinase both in the presence and the absence of Ca2+.
Nousiainen, Marjaana +3 more
core +1 more source
Electrospray Ionization Mass Spectrometry for Mechanism Analysis of Metal Ion Complexation and Photoionization of Malachite Green Derivatives Incorporating a Crown Ether Moiety [PDF]
, 1999 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
core +2 more sources
Desorption Electrospray Ionization-Mass Spectrometry of Proteins [PDF]
Analytical Chemistry, 2007 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.
Yong-Seung, Shin +4 more
openaire +2 more sources
Further characterization of glycine-containing microcystins from the McMurdo Dry Valleys of Antarctica [PDF]
, 2015 Microcystins are hepatotoxic cyclic peptides produced by several cyanobacterial genera worldwide. In 2008, our research group identified eight new glycine-containing microcystin congeners in two hydro-terrestrial mat samples from the McMurdo Dry Valleys ...
Cary, S. Craig +5 more
core +3 more sources