Results 51 to 60 of about 706,792 (383)

Implications of Matrix Effects in Quantitative HPLC/ESI-ToF-MS Analyses of Atmospheric Organic Aerosols

Proceedings, 2020
Matrix-induced signal suppression or enhancements are known phenomena in electrospray ionization mass spectrometry. Very few studies report on method development for organic aerosols analyses with the evaluation of the matrix effects.
Cornelia Amarandei, Romeo Iulian Olariu, Cecilia Arsene   +2 more
doaj   +1 more source

Recent Progress of Native Mass Spectrometry on Protein Extraction, Ion Source Development and Conformational Interpretation [PDF]

Zhipu Xuebao, 2022
Protein characterization highly depends on its operating conditions, where native or often referred as non-denaturing options will greatly facilitate the collection of more biologically meaningful information.
XU Xia;ZHANG Chen-ao;SUN Zi-yi;ZHENG Zhen;LI Gong-yu
doaj   +1 more source

Fragmentation reactions using electrospray ionization mass spectrometry: an important tool for the structural elucidation and characterization of synthetic and natural products.

Natural product reports (Print), 2016
Over the last decade, the number of studies reporting the use of electrospray ionization mass spectrometry (ESI-MS) in combination with collision cells (or other activation methods) to promote fragmentation of synthetic and natural products for ...
D. Demarque, A. Crotti, R. Vessecchi, J. Lopes, N. Lopes   +4 more
semanticscholar   +1 more source

Co-populated Conformational Ensembles of β(2)-Microglobulin Uncovered Quantitatively by Electrospray Ionization Mass Spectrometry [PDF]

, 2004
Ordered assembly of monomeric human β(2)-microglobulin (β(2)m) into amyloid fibrils is associated with the disorder hemodialysis-related amyloidosis. Previously, we have shown that under acidic conditions (pH
Bjorkman, Cech, Chiti, Chiti, Chowdhury, Dobo, Dobson, Esposito, Felitsyn, Fenn, Fenn, Floege, Ganem, Gejyo, Gejyo, Gorevic, Goto, Grandori, Grandori, Hill, Hoshino, Jones, Kad, Kad, Kaltashov, Karlsson, Katou, Khan, Konermann, Konermann, Kraulis, Mayer, McParland, McParland, Mirza, Morgan, Ohashi, Pitkanen, Robinson, Samalikova, Samalikova, Saper, Selkoe, Siuzdak, Smith, Wanker, Yamaguchi   +46 more
core   +1 more source

Electrospray Ionization Mass Spectrometry: A Technique to Access the Information beyond the Molecular Weight of the Analyte

International Journal of Analytical Chemistry, 2012
The Electrospray Ionization (ESI) is a soft ionization technique extensively used for production of gas phase ions (without fragmentation) of thermally labile large supramolecules.
Shibdas Banerjee, Shyamalava Mazumdar
doaj   +1 more source

MetFish: a Metabolomics Pipeline for Studying Microbial Communities in Chemically Extreme Environments

mSystems, 2021
The identification and accurate quantification of metabolites using electrospray ionization-mass spectrometry (ESI-MS) in hypersaline samples is a challenge due to matrix effects.
Chengdong Xu, Sneha P. Couvillion, Ryan L. Sontag, Nancy G. Isern, Yukari Maezato, Stephen R. Lindemann, Taniya Roy Chowdhury, Rui Zhao, Beau R. Morton, Rosalie K. Chu, Ronald J. Moore, Janet K. Jansson, Vanessa L. Bailey, Paula J. Mouser, Margaret F. Romine, James F. Fredrickson, Thomas O. Metz   +16 more
doaj   +1 more source

Highly Improved Electrospray Ionization-Mass Spectrometry Detection of G-Quadruplex-Folded Oligonucleotides and Their Complexes with Small Molecules [PDF]

, 2017
G-quadruplexes are nucleic acids structures stabilized by physiological concentration of potassium ions. Because low stability G-quadruplexes are hardly detectable by mass spectrometry, we optimized solvent conditions: isopropanol in a triethylamine ...
Scalabrin, Matteo, Palumbo, Manlio, Richter, Sara N.   +2 more
core   +1 more source

Some Thoughts on Electrospray Ionization Mechanisms

European Journal of Mass Spectrometry, 2011
Electrospray ionization (ESI) mechanisms are highly complex, due to a series of physical and chemical phenomena taking place on a complex system, as a solution is. In fact, even if the solution of an analyte in a protic medium can be considered at first sight to be a two-component system, the presence of solvent dissociation equilibria and the ...
Crotti S, Seraglia R, Traldi P
openaire   +5 more sources

Mechanosensitive Self-Replication Driven by Self-Organization [PDF]

, 2010
Self-replicating molecules are likely to have played an important role in the origin of life, and a small number of fully synthetic self-replicators have already been described.
Belenguer, Ana M.,, Carnall, Jacqui M.A.,, Otto, Sijbren,, Peyralans, Jérôme J.-P.,, Stuart, Marc C.A.,, Waudby, Christopher A.,   +5 more
core   +6 more sources