MALDI TOF mass spectrometers (matrix-assisted laser desorption/ionization/time-of-flight) are amongst the most popular mass spec instruments in biology. They combine two technologies, the “soft” MALDI ionization source and the TOF mass analyzer. The latter measures an ion’s mass-to-charge ratio (m/z) by measuring the time it takes to reach a detector. The former volatilizes and ionizes those molecules using a laser, a target, and an organic compound called a matrix. In MALDI, a sample (for instance, a collection of tryptic peptides) is mixed with matrix, spotted and dried (crystallized) on the surface of a metal target plate. Upon irradiation with laser light, the matrix absorbs the energy and converts it to heat, which then causes the sample to ionize and explode off the plate into the mass analyzer. MALDI TOF mass spectrometers come in two basic flavors, MALDI TOF MS and MALDI TOF/TOF MS; the latter enables tandem MS (MS/MS) studies.
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| Company | Shimadzu | Shimadzu | Shimadzu |
| Item | MALDImini-1 Compact MALDI Digital Ion Trap Mass Spectrometer | MALDI-8020 EasyCare Benchtop Linear MALDI-TOF Mass Spectrometer | MegaTOF Megadalton MALDI Mass Spectrometer |
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| Catalog Number | MALDImini-1 | MALDI-8020 | MegaTOF |
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| Ionization Method(s) | MALDI ion source | MALDI | MALDI |
| Mass Analyzer | Digital Ion Trap (DIT) | TOF | TOF |
| Resolution | Inquire | > 5000 FWHM – ACTH 18-39 (m/z 2465) | 180 to 200 kDa |
| Scanning Speed | Inquire | Inquire | 15 sec/position |
| Mass Range | Inquire | m/z 1 - 500,000 | 0.01 to 1.5 Mda |
| Description | Inquire | Through innovative instrument design, the space-saving linear MALDI-8020 achieves performance specifications similar to those of larger, more expensive MALDI-TOF models but in a significantly smaller footprint. The MALDI-8020 improves laboratory efficiency and accelerates analysis through a newly Through innovative instrument design, the space-saving linear MALDI-8020 achieves performance specifications similar to those of larger, more expensive MALDI-TOF models but in a significantly smaller footprint. The MALDI-8020 improves laboratory efficiency and accelerates analysis through a newly designed load-lock system for rapid sample target introduction and a solid-state laser for fast data acquisition speeds. Using linear time of flight, this compact MALDI-TOF system enables low-level detection of proteins, peptides and polymers, among other analytes. In addition, it easily accommodates standard laboratory workflows such as peptide mass finger printing for simple protein ID confirmation, in-source decay (ISD) and polymer distribution analysis.
Features: - Compact benchtop design
- Rapid loading and acquisition
- Automated source cleaning
- Integrated barcode scanner
The MALDI-8020, operated by MALDI Solutions software, is ideally suited for pharmaceutical QC labs as well as academic and industrial labs with limited laboratory space. With the addition of the MALDI-TOF Imaging Starter Kit, MS imaging on a benchtop system is now possible. MALDI Solutions offers intuitive, yet secure, operation, including security, audit trails and user management, to help meet 21 CFR Part 11 compliance. Additionally, the simple and intuitive user interface makes this an ideal teaching tool.... Read More | The MegaTOF has been developed by optimizing the integration of a high-performance Shimadzu linear MALDI TOF mass spectrometer with a CovalX high-mass system, allowing outstanding detection of macromolecules up to 1,500 kDa.
Features - Ultrahigh sensitivity
- Detects macromolecules up to 1,500,000 Da
The MegaTOF has been developed by optimizing the integration of a high-performance Shimadzu linear MALDI TOF mass spectrometer with a CovalX high-mass system, allowing outstanding detection of macromolecules up to 1,500 kDa.
Features - Ultrahigh sensitivity
- Detects macromolecules up to 1,500,000 Da
- Stabilization of molecule using crosslinking reagent kits
- Fast, specific stabilization of protein interactions
- Also applicable for low mass applications
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Applications - Antibody characterization
- Protein complexes characterization
- Therapeutic protein aggregates
- High mass MALDI imaging
- Inhibitors of protein-protein interactions
This product is only available in the United States.... Read More |
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