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 | iMScope QT Imaging Mass Microscope | MALDI-8020 EasyCare Benchtop Linear MALDI-TOF Mass Spectrometer | OmegaTOF Benchtop High Mass MALDI-TOF Mass Spectrometer |
| Catalog Number | iMScope QT | MALDI-8020 | OmegaTOF |
| Price | | | |
| Ionization Method(s) | Atmospheric Pressure MALDI (AP-MALDI) | MALDI | MALDI |
| Mass Analyzer | Q-TOF | TOF | Time-of-Flight |
| Resolution | Inquire | > 5000 FWHM – ACTH 18-39 (m/z 2465) | >5000 FWHM – ACTH 18-39 (m/z 2465) |
| Mass Range | Inquire | m/z 1 - 500,000 | m/z 1,000–1,500,000Da |
| 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 OmegaTOF system couples Shimadzu’s benchtop MALDI-TOF instrument platform (MALDI-8020) with established technology for high mass detection from CovalX Instruments Inc. The result is a user-friendly, compact platform that extends benchtop MALDI-TOF analysis to a mass range of 1.5 MegaDalton.
TheThe OmegaTOF system couples Shimadzu’s benchtop MALDI-TOF instrument platform (MALDI-8020) with established technology for high mass detection from CovalX Instruments Inc. The result is a user-friendly, compact platform that extends benchtop MALDI-TOF analysis to a mass range of 1.5 MegaDalton.
The high mass detection capabilities of the OmegaTOF allow the highest sensitivity for analyzing large biomolecules, protein interactions, peptides, oligonucleotides and polymers. This allows access to a full range of applications already developed and optimized by CovalX technologies, most notably characterizing monoclonal antibodies, such as IgG, IgA and IgM. Crosslinking chemistries developed by CovalX enable the OmegaTOF to measure intact protein interactions directly, providing insight into protein aggregation, mAb:antigen interactions, protein complex stoichiometry or ligand association/dissociation measurements.
The OmegaTOF offers: - 200 Hz solid-state 355 nm laser featuring a class-leading two billion shots per lifetime
- Fast sample introduction using a load-lock chamber and quick sample stage movement
- Integrated barcode reader
- Patented TrueClean™ source cleaning
WideBore™ ion optics technologies that significantly reduce contamination from desorbed MALDI samples - Ease-of-use
- Low maintenance
- Small footprint
- Quiet operation at <55 dB
OmegaTOF data can be directly imported into the latest versions of CovalX ComplexTracker software for protein interaction analysis. Tailored MALDI Solutions acquisition software features data security for regulatory compliance facilitated with password-controlled user login, encrypted data, and user traceability. ... Read More |
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