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 | Axima Assurance MALDI Time of Flight Mass Spectrometer | MALDI-8020 EasyCare Benchtop Linear MALDI-TOF Mass Spectrometer |
| Citations | | | |
| Catalog Number | iMScope QT | AXIMA Assurance | MALDI-8020 |
| Price | | | |
| Ionization Method(s) | Atmospheric Pressure MALDI (AP-MALDI) | MALDI | MALDI |
| Mass Analyzer | Q-TOF | TOF | TOF |
| Resolution | Inquire | >5000 FWHM | > 5000 FWHM – ACTH 18-39 (m/z 2465) |
| Scanning Speed | Inquire | Inquire | Inquire |
| Mass Range | Inquire | 1 kDa to 500 kDa | m/z 1 - 500,000 |
| Description | Inquire | 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 | 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 |
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