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Sample target for a MALDI mass spectrometer. The type of a mass spectrometer most widely used with MALDI is the time-of-flight mass spectrometer (TOF), mainly due to its large mass range. The TOF measurement procedure is also ideally suited to the MALDI ionization process since the pulsed laser takes individual 'shots' rather than working in ...
Laboratory information management software for mass spectrometry information management and data analysis. OpenChrom: Open source: Chromatography and mass spectrometry software that can be extended using plug-ins and can run on several operating systems (Microsoft Windows, Linux, Unix, Mac OS X) and processor architectures (x86, x86_64, ppc).
While the first generation of MALDESI system was coupled to Fourier transform (FT) ion cyclotron resonance mass spectrometer, [3] the current source is interfaced with a Thermo Exploris 240 or a Q Exactive Plus mass spectrometer equipped with an Orbitrap mass analyzer. These mass analyzers offer equally accurate mass measurements but generally ...
MALDI mass spectrometry imaging (MALDI-MSI) is the use of matrix-assisted laser desorption ionization as a mass spectrometry imaging [2] technique in which the sample, often a thin tissue section, is moved in two dimensions while the mass spectrum is recorded. [3]
Ion mobility spectrometry-mass spectrometry (IMS/MS or IMMS) is a technique where ions are first separated by drift time through some neutral gas under an applied electrical potential gradient before being introduced into a mass spectrometer. [43] Drift time is a measure of the collisional cross section relative to the charge of the ion.
MS – Mass spectrometry; MS 2 – Mass spectrometry/mass spectrometry, i.e. tandem mass spectrometry; MS/MS – Mass spectrometry/mass spectrometry, i.e. tandem mass spectrometry; MALDESI – Matrix-assisted laser desorption electrospray ionization; MALDI – Matrix-assisted laser desorption/ionization; MAII – Matrix-assisted inlet ionization
In mass spectrometry, a matrix is a compound that promotes the formation of ions. Matrix compounds are used in matrix-assisted laser desorption/ionization (MALDI), matrix-assisted ionization (MAI), and fast atom bombardment (FAB).
Schematic of a quadrupole time-of-flight (QTOF) mass spectrometer. The different m/z separation elements of a hybrid mass spectrometer can be represented by a shorthand notation. The symbol Q represents a quadrupole mass analyzer , q is a radio frequency collision quadrupole, TOF is a time-of-flight mass spectrometer , B is a magnetic sector ...
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