Results 11 to 20 of about 682,349 (297)

Electrospray Ionization [PDF]

open access: yesDefinitions, 2020
A procedure used in mass spectrometry analysis. Means of delivering nonvolatile analytes into the gas phase for mass analysis. Best used on molecules which are charged in solution or readily accept a charge.

semanticscholar   +2 more sources

Electrospray Ionization on Solid Substrates.

open access: yesMass Spectrometry, 2014
Development of electrospray ionization on solid substrates (solid-substrate ESI) avoids the clogging problem encountered in conventional capillary-based ESI, allows more convenient sampling and permits new applications.
P. So, Bin Hu, Z. Yao
semanticscholar   +4 more sources

Extractive Electrospray Ionization [PDF]

open access: yesAmbient Mass Spectroscopy Techniques in Food and the Environment, 2019
S. Mital
semanticscholar   +3 more sources

Efficiency of nano-electrospray ionization [PDF]

open access: yesJournal of the American Society for Mass Spectrometry, 2005
The efficiency of nano-electrospray ionization, defined as the flux of ions reaching the detector of a triple-quadrupole mass spectrometer divided by the flux of analyte ions leaving the needle, has been measured in a series of controlled experiments with dodecyltrimethyl ammonium (DDTMA) bromide, myoglobin, Glu- [1]-fibrinopeptide, and gramicidin S ...
El-Faramawy, Ayman   +2 more
openaire   +2 more sources

Investigating the Ionization of Dissolved Organic Matter by Electrospray

open access: yesAnalytical Chemistry, 2020
Electrospray ionization (ESI) operating in the negative mode coupled to high-resolution mass spectrometry is the most popular technique for the characterization of dissolved organic matter (DOM).
Claudia Patriarca   +6 more
semanticscholar   +1 more source

Exploiting the formation of adducts in mobile phases with ammonium fluoride for the enhancement of annotation in liquid chromatography-high resolution mass spectrometry based lipidomics

open access: yesJournal of Chromatography Open, 2021
Liquid Chromatography-High Resolution Mass Spectrometry (LC-HRMS) based lipidomics has become the most versatile analytical tool to discover and detect lipids using a non-targeted approach.
Carolina Gonzalez-Riano   +2 more
doaj   +1 more source

Desorption Electrospray Ionization (DESI) Mass Spectrometric Imaging of the Distribution of Rohitukine in the Seedling of Dysoxylum binectariferum Hook. F. [PDF]

open access: yesPLoS ONE, 2016
Ambient ionization mass spectrometric imaging of all parts of the seedling of Dysoxylum binectariferum Hook. f (Meliaceae) was performed to reconstruct the molecular distribution of rohitukine (Rh) and related compounds.
Patel Mohana Kumara   +5 more
doaj   +1 more source

Principles of Electrospray Ionization [PDF]

open access: yesMolecular & Cellular Proteomics, 2011
Electrospray ionization is today the most widely used ionization technique in chemical and biochemical analysis. Interfaced with a mass spectrometer it allows the investigation of the molecular composition of liquid samples. With electrospray a large variety of chemical substances can be ionized.
openaire   +5 more sources

Spatially-resolved in vivo plant metabolomics by laser ablation-based mass spectrometry imaging (MSI) techniques: LDI-MSI and LAESI

open access: yesFrontiers in Plant Science, 2015
This short review aims to summarize the current developments and applications of mass spectrometry-based methods for in situ profiling and imaging of plants with minimal or no sample pre-treatment or manipulation.
Aleš eSvatoš, Benjamin eBartels
doaj   +1 more source

High spatial resolution imaging of biological tissues using nanospray desorption electrospray ionization mass spectrometry

open access: yesNature Protocols, 2019
Mass spectrometry imaging (MSI) enables label-free spatial mapping of hundreds of biomolecules in tissue sections. This capability provides valuable information on tissue heterogeneity that is difficult to obtain using population-averaged assays. Despite
Ruichuan Yin   +4 more
semanticscholar   +1 more source

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