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- Matrix-assisted_laser_desorption_electrospray_ionization abstract "Matrix-assisted laser desorption electrospray ionization (MALDESI) is an ambient ionization technique which combines the benefits of electrospray ionization (ESI) and matrix-assisted laser desorption/ionization (MALDI). MALDESI was introduced in 2006 as the first hybrid ionization source combining laser ablation and electrospray post-ionization using a resonantly excited matrix (endogenous or exogenous). An infrared (IR) or ultraviolet (UV) laser can be utilized in MALDESI in order to resonantly excite an endogenous or exogenous matrix. The term ‘matrix’ refers to any molecule that is present in large excess and absorbs the energy of the laser, facilitating desorption of analyte molecules. The original MALDESI design was implemented using organic matrices, similar to those used in MALDI, along with a UV laser. The more recent MALDESI source uses a thin layer of ice as the energy-absorbing matrix that is resonantly excited using a mid-infrared (IR) laser.The IR-MALDESI source can be used for mass spectrometry imaging (MSI), a technique using MS data collected over the sample area to visualize the spatial distribution of specific analyte molecules. A versatile IR-MALDESI MSI source was designed and implemented, which is currently coupled to a high resolving power hybrid Quadrupole-Orbitrap mass spectrometer. The source has single- or multi-shot capabilities with adjustable laser fluence, repetition rate, as well as the delay between the laser trigger and MS ion accumulation. The sample plate and moving components are enclosed in a nitrogen purged enclosure where ambient ions and relative humidity can be regulated. A water cooled Peltier thermoelectric plate is used to control the sample temperature (-10 °C to 80 °C).The IR-MALDESI source is currently used to investigate the fundamentals of the ionization process, in addition to being routinely employed for visualizing analyte distributions in biological, forensic, and pharmaceutical samples.".
- Matrix-assisted_laser_desorption_electrospray_ionization thumbnail IR-MALDESI_Imaging_Schematic.png?width=300.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageID "18266330".
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageLength "11112".
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageOutDegree "29".
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageRevisionID "673300488".
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Ablate.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Ablation.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Category:Ion_source.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Desorb.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Desorption.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Electrospray_ionization.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Excited_state.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Forensic_science.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Infrared.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Ion.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Laser.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Laser_ablation_electrospray_ionization.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink List_of_textile_fibres.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink AIDS.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Mass_spectrometry_imaging.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink ionization.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Molecule.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Molecules.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Orbitrap.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Photoionization.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Quadrupole_mass_analyzer.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Spatial_distribution.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Thermospray.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink Ultraviolet.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLink File:IR-MALDESI_Imaging_Schematic.png.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLinkText "Matrix-assisted laser desorption electrospray ionization".
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageWikiLinkText "matrix-assisted laser desorption electrospray ionization".
- Matrix-assisted_laser_desorption_electrospray_ionization hasPhotoCollection Matrix-assisted_laser_desorption_electrospray_ionization.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageUsesTemplate Template:Mass_spectrometry.
- Matrix-assisted_laser_desorption_electrospray_ionization wikiPageUsesTemplate Template:Reflist.
- Matrix-assisted_laser_desorption_electrospray_ionization subject Category:Ion_source.
- Matrix-assisted_laser_desorption_electrospray_ionization hypernym Technique.
- Matrix-assisted_laser_desorption_electrospray_ionization type Software.
- Matrix-assisted_laser_desorption_electrospray_ionization comment "Matrix-assisted laser desorption electrospray ionization (MALDESI) is an ambient ionization technique which combines the benefits of electrospray ionization (ESI) and matrix-assisted laser desorption/ionization (MALDI). MALDESI was introduced in 2006 as the first hybrid ionization source combining laser ablation and electrospray post-ionization using a resonantly excited matrix (endogenous or exogenous).".
- Matrix-assisted_laser_desorption_electrospray_ionization label "Matrix-assisted laser desorption electrospray ionization".
- Matrix-assisted_laser_desorption_electrospray_ionization sameAs m.04cwmnx.
- Matrix-assisted_laser_desorption_electrospray_ionization sameAs مصوفہ_معاونتی_ترتاش_التفاظ_برق_بخاخ_تائین.
- Matrix-assisted_laser_desorption_electrospray_ionization sameAs Q6787840.
- Matrix-assisted_laser_desorption_electrospray_ionization sameAs Q6787840.
- Matrix-assisted_laser_desorption_electrospray_ionization wasDerivedFrom Matrix-assisted_laser_desorption_electrospray_ionization?oldid=673300488.
- Matrix-assisted_laser_desorption_electrospray_ionization depiction IR-MALDESI_Imaging_Schematic.png.
- Matrix-assisted_laser_desorption_electrospray_ionization isPrimaryTopicOf Matrix-assisted_laser_desorption_electrospray_ionization.