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 | Benchtop MALDI Imaging Kit | iMScope QT Imaging Mass Microscope | OmegaTOF Benchtop High Mass MALDI-TOF Mass Spectrometer |
| Catalog Number | Benchtop MALDI Imaging | iMScope QT | OmegaTOF |
| Price | | | |
| Ionization Method(s) | Inquire | Atmospheric Pressure MALDI (AP-MALDI) | MALDI |
| Mass Analyzer | Inquire | Q-TOF | Time-of-Flight |
| Resolution | Inquire | Inquire | >5000 FWHM – ACTH 18-39 (m/z 2465) |
| Scanning Speed | FastMS feature - with the 200 Hz laser, fast sample slide introduction ( <3 min), and quick sample stage – provides
the speed to attain up to 15 pixels per second (lipid imaging acquisition (100 to 1200 m/z) at 50 µm spacing using an
the accumulation rate of 10 shots/profile). | Inquire | Inquire |
| Mass Range | Inquire | Inquire | m/z 1,000–1,500,000Da |
| Description | The Benchtop MALDI-TOF Imaging Kit is ideal for users starting out in the world of biomolecular imaging. Used in conjunction with the compact benchtop MALDI-TOF 8020/8030 systems, it provides a welcoming platform by combining the ease of MALDI analysis with extremely intuitive software in an all-The Benchtop MALDI-TOF Imaging Kit is ideal for users starting out in the world of biomolecular imaging. Used in conjunction with the compact benchtop MALDI-TOF 8020/8030 systems, it provides a welcoming platform by combining the ease of MALDI analysis with extremely intuitive software in an all-inclusive imaging kit. The system can serve as an ideal teaching tool to introduce users to MALDI imaging. In addition, it offers a low-cost entry point to users who would like to see what MALDI imaging can offer for their workflow.
The benchtop systems are equipped with a fast sample stage and quick-load technology, which enable a short time-to-analysis while delivering low associated overhead costs with a long-life fast laser (200 Hz), the longer-life AeonDetectorTM and self-cleaning ion optics based on the Shimadzu TrueCleanTM technology.
The Benchtop MALDI-TOF Imaging Kit is a value-added package to complement existing and new users of the MALDI-8020 or MALDI-8030, expanding the already versatile capabilities of these systems. The kit includes everything users need to begin imaging experiments on their MALDI-8020 or MALDI-8030 system, including:
- Custom ITO-coated glass slides
- New custom glass slide holder
- Metal slides for those who prefer a reusable slide option
- Mask to facilitate sample mounting and to shield regions of the glass slide during matrix deposition
- Carrier to aid optical scanning
The MALDI Solutions IonView software (included in the kit) provides an easy workflow for the routine processing of MALDI images such as snapshots, overlays, and displays of regions of interest and pixel spectra.... Read More | Inquire | 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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