Results 231 to 240 of about 38,846 (279)

Desorption electrospray ionization of aerosol particles

Rapid Communications in Mass Spectrometry, 2007
Abstract We have applied desorption electrospray ionization to aerosol particles. Ions were formed from aerosols by merging suspended dry particles with an electrospray of solvent in a modified ion trap mass spectrometer. Dry aerosol particles were generated using a fluidized bed powder disperser and directed toward the inlet of the ...
Jianan, Dong, Yohannes H, Rezenom, Kermit K, Murray   +2 more
openaire   +2 more sources

Desorption Electrospray Ionization of Explosives on Surfaces:  Sensitivity and Selectivity Enhancement by Reactive Desorption Electrospray Ionization

Analytical Chemistry, 2005
Desorption electrospray ionization (DESI), an ambient mass spectrometry technique, is used for trace detection of the explosives trinitrohexahydro-1,3,5-triazine (RDX), octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), 2,4,6-trinitrotoluene (TNT), Pentaerythritol tetranitrate (PETN), and their plastic compositions (Composition C-4, Semtex-H ...
Ismael, Cotte-Rodríguez, Zoltán, Takáts, Nari, Talaty, Huanwen, Chen, R Graham, Cooks   +4 more
openaire   +2 more sources

Ion suppression effect in desorption electrospray ionization and electrospray ionization mass spectrometry

Rapid Communications in Mass Spectrometry, 2017
Rationale Although it is claimed that desorption electrospray ionization (DESI) causes less ion suppression effects than electrospray ionization (ESI), a related investigation with quantification measurement of ion suppression effects is absent.
Zheng Wang, Haijing Zhu, Guangming Huang
openaire   +2 more sources

Synchronized Inductive Desorption Electrospray Ionization Mass Spectrometry

Angewandte Chemie - International Edition, 2011
Guangming Huang, Zheng Ouyang, R Graham Cooks   +2 more
exaly   +3 more sources

Electrode‐assisted desorption electrospray ionization mass spectrometry

Journal of Mass Spectrometry, 2010
AbstractA 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.
openaire   +3 more sources

Desorption Electrospray Ionization in a Small Pressure-Tight Enclosure

Analytical Chemistry, 2007
Desorption electrospray ionization (DESI) is made easier to implement, more robust, and exposure of the analyst to the sample is reduced by a novel DESI interface. This features a small, pressure-tight enclosure with fixed spatial relationships between the sprayer, surface, and sampling capillary.
Andre, Venter, R Graham, Cooks
openaire   +2 more sources

Synchronized Desorption Electrospray Ionization Mass Spectrometry Imaging

Analytical Chemistry, 2015
Desorption electrospray ionization (DESI) has emerged as a powerful technique for mass spectral analysis and imaging under ambient conditions. Synchronization of DESI (sDESI) with the ion injection period (IT)of low-duty cycle mass spectrometers has been previously shown to improve sensitivity and reduce the amount of sample depleted during the ...
Comi, Troy J., Woo Ryu, Seung, Perry, Richard H.   +2 more
openaire   +3 more sources

Desorption electrospray ionization and matrix-assisted laser desorption/ionization as imaging approaches for biological samples analysis

Analytical and Bioanalytical Chemistry, 2023
The imaging of biological tissues can offer valuable information about the sample composition, which improves the understanding of analyte distribution in such complex samples. Different approaches using mass spectrometry imaging (MSI), also known as imaging mass spectrometry (IMS), enabled the visualization of the distribution of numerous metabolites,
Lanaia Ítala Louzeiro Maciel, Ricardo Alves Bernardo, Rafael Oliveira Martins, Almir Custodio Batista Junior, João Victor Ataíde Oliveira, Andréa Rodrigues Chaves, Boniek Gontijo Vaz   +6 more
openaire   +2 more sources

Protein analysis by desorption electrospray ionization mass spectrometry

Mass Spectrometry Reviews
AbstractThis review presents progress made in the ambient analysis of proteins, in particular by desorption electrospray ionization‐mass spectrometry (DESI‐MS). Related ambient ionization techniques are discussed in comparison to DESI‐MS only to illustrate the larger context of protein analysis by ambient ionization mass spectrometry.
André R Venter
exaly   +3 more sources

Desorption Electrospray Ionization: Achieving Rapid Sampling Rates

Analytical Chemistry, 2009
The sampling rate and imaging capabilities of desorption electrospray ionization (DESI) are examined using a rotating sample platform combined with Hadamard transform time-of-flight mass spectrometry (HTTOFMS), a multiplexed time-of-flight technique that allows for millisecond acquisition of full mass-to-charge ratio scans.
Griffin K, Barbula, Matthew D, Robbins, Oh Kyu, Yoon, Ignacio, Zuleta, Richard N, Zare   +4 more
openaire   +2 more sources