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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CompanyShimadzuShimadzuShimadzuShimadzuShimadzu
ItemAxima Confidence MALDI TOF Mass SpectrometerAxima Assurance MALDI Time of Flight Mass SpectrometerAxima Performance MALDI TOF TOF Mass SpectrometerLCMS-9030 Q-TOF Mass SpectrometerLCMS-9050 Q-TOF Mass Spectrometer
Citations
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Figures
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Catalog NumberAxima ConfidenceAXIMA AssuranceAxima PerformanceLCMS-9030LCMS-9050
Price
Ionization Method(s)MALDIMALDIMALDIESI, APCI, DUIS, MicroESI, APCI, DUIS, Micro
Mass AnalyzerTOFTOFTOF/TOFQuadrupole Time-of-Flight (Q-TOF)Quadrupole Time-of-Flight (Q-TOF)
Resolution5000 FWHM in linear mode; 15000 FWHM in reflectron mode>5000 FWHM>20,000 FWHM (Reflectron mode)30,000 FWHMInquire
Scanning SpeedInquireInquireInquireUp to 100 HzInquire
Mass Range1 kDa to 500 kDa1 kDa to 500 kDa1 kDa to 500 kDam/z 10 to 40,000Inquire
Description

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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An affordable, robust option for laboratories requiring routine manual or automated analysis of a wide variety of sample classes, the AXIMA Assurance provides high-quality, rapid MALDI mass spectra and an array of software tools for data processing and reporting. Incorporating a variable repetition

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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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The LCMS-9030 quadrupole time-of-fight (Q-TOF) mass spectrometer integrates the world’s fastest and most sensitive quadrupole technology with TOF architecture. A product of Shimadzu's engineering DNA, speed and effortless performance enable the LCMS-9030 to address qualitative and quantitative ... Read MoreThe LCMS-9050 quadrupole time-of-flight mass spectrometer inherits the world-class mass accuracy and stability of the LCMS-9030 while incorporating newly developed UFstabilization technology for simultaneous positive ion/negative ion analysis with high mass accuracy at even higher speeds. Ease of ... Read More
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