Time of Flight Mass Spectrometer (TOF MS)

Time-of-flight mass spectrometers (TOF MS) do exactly what their name suggests: determine an ion’s mass-to-charge ratio (m/z) based on how long it takes for that ion to travel down the instrument’s “flight tube” and reach the detector. Frequently, though not exclusively coupled to matrix-assisted laser desorption ionization (MALDI) sources, TOF MS come in a variety of configurations, including a single-stage time-of-flight mass spectrometer, a multi-stage TOF/TOF, and even a hybrid quadrupole-TOF (Q-TOF) instrument; the latter two enable MS/MS applications. Often, time-of-flight mass spectrometers contain two detectors: a linear detector at the end of the flight tube, and a “reflector” detector, which captures ions that were redirected back towards the source by a “reflectron.” The reflectron serves two purposes: correcting for discrepancies in initial kinetic energy of identically sized molecules (which would cause them to reach the detector at different times and thus, have different apparent m/z values) and lengthening the flight path, improving resolution.

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CompanyShimadzuShimadzu
ItemAxima Performance MALDI TOF TOF Mass SpectrometerAxima Confidence MALDI TOF Mass Spectrometer
Citations
Figures
(3)
Catalog NumberAxima PerformanceAxima Confidence
Price
Ionization Method(s)MALDIMALDI
Mass AnalyzerTOF/TOFTOF
Resolution>20,000 FWHM (Reflectron mode)5000 FWHM in linear mode; 15000 FWHM in reflectron mode
Scanning SpeedInquireInquire
Mass Range1 kDa to 500 kDa1 kDa to 500 kDa
Description

The AXIMA Performance is one of the most powerful tools in mass spectrometry, delivering information-rich spectra with greater sensitivity and higher confidence in identification. Extremely versatile, this MALDI TOF-TOF mass spectrometer utilizes state-of-the-art high energy MS/MS, delivers

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An affordable, robust option for routine sample analysis performed manually or automatically, the AXIMA Confidence offers reliable mass information and MS/MS-derived structural detail. A linear mode enables outstanding levels of analysis of high-molecular weight samples while the reflectron mode,

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QuantityEAEA
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