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 | Axima Assurance MALDI Time of Flight Mass Spectrometer | iMScope QT Imaging Mass Microscope |
| Citations | | | |
| Catalog Number | Benchtop MALDI Imaging | AXIMA Assurance | iMScope QT |
| Price | | | |
| Ionization Method(s) | Inquire | MALDI | Atmospheric Pressure MALDI (AP-MALDI) |
| Mass Analyzer | Inquire | TOF | Q-TOF |
| Resolution | Inquire | >5000 FWHM | Inquire |
| 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 | 1 kDa to 500 kDa | Inquire |
| 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 | 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 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 rate 50Hz N2 laser, it is ideally suited for high-throughput QA/QC analysis of oligonucleotide/primers, synthetic peptides/proteins, polymers, and other small molecules. Features: High Sensitivity/Resolution:
A variable repetition rate 50 Hz N2 laser and advanced ion optics for enhanced ion transmission enable users to meet all sample throughput requirements. Pulsed extraction of ions from the MALDI source improves resolution, and enhanced calibration algorithms with easy-to-use software provide more accurate data. Positive and Negative Ion Modes Included as Standard:
Allows greater flexibility and extends the compound categories that may be analyzed. Patented Beam Blanker:
Removes unwanted low mass ions and prevents detector saturation. Unparalleled Flexibility:
A variety of sample target formats, including standard microtiter plate format 96 or 384 well targets, can be used. In addition, Fleximass™ microscope slides (plain or 48 well targets) and a wide variety of adaptors for unconventional sample layouts are available.
Like all AXIMA MALDI-TOF systems, the AXIMA Assurance can be fully integrated with robotic sample preparation devices, including the AccuSpot MALDI plate spotter and CHIP chemical printer, to create application-specific platforms. Integration with the CHIP creates a powerful platform for tissue imaging, while using an AXIMA instrument with a Prominence GPC system and AccuSpot results in a fully automated platform for polymer analysis that delivers quick, detailed analysis of ultra-trace substances. ... Read More | Inquire |
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