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Electrical semiconductor characterization
Luminescence dating, research, dosimetry and more
Free radical measurements in life science and biomedical applications
Our benchtop MiniScope (MS 5000) ESR spectrometer is a research grade device with sensitivity and reliability for demanding...
The MS 6000 is a research device with high-end sensitivity for sophisticated applications in field of science & technology.
Industry standard for evaluating irradiation doses of alanine pellets and blisters
Nitric oxide measurement, reactive oxygen species, oxidative stress, Proteine structure & enzyme function
Antioxidative features of foodstuff, Food irradiation control, Flavour stability, Beer analysis
Analysis of chemical structure of paramagnetic centers and their orientation within a crystal
Transition metal compounds, Effects of heavy metal ions on living tissue, etc.
A variety of free radicals is formed through pollutants such as particulate matter, nanoparticles or others
Asphaltenes in crude oil, Thermooxidative breakdown of lubricants, Polymerization control
Quality control of pharmaceuticals and impurity profiling
Spin density, Kinetic measurements
ESRStudio is a dynamic and user friendly software for ESR measurements with some of the most modern and fluent workflow based...
Magnettech GmbH was founded in 1991 by the members of the department of "Centre for Construction of Scientific Devices"...
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Many transition metal ions are bearing unpaired electrons. They can be observed by the MS5000 ESR spectrometer down to nanomolar concentrations. The exact spin states („high-spin“ or „low spin“) of compounds with different ligands can be distinguished easily for one and the same central ion. This is especially useful for protein characterization in bioinorganic chemistry.
ESR spectrometry provides key information to compare coordination geometries of active metal centres in enzymes and their model complexes of low molecular weight. An example is shown on the right, displaying the ESR-spectra of the active Cu2+ centre of Cu(II)2Zn2 superoxide dismutase and Cu(II)PuPy, a superoxide dismutase mimic. Most of the enzymes and model complexes examined in bioinorganic research are copper and iron bearing compounds.
Vanadium is a common encounter in petrochemistry & catalytic applications. ESR can detect the VO2+ and V2+ ions sensitively, making vanadium a useful indicator for crude oil quality control & research in hetero-catalysis. Even though vanadium is 470 times more rare than iron.
Manganese is essential for all life forms since it participates in enzyme formation and redox reactions. It is also abundant on the earth where it occurs as an impurity, for instance in ZnS (see below).
The signal-to-noise ration of transition metals can be improved by low-temperature measurements. Usage of liquid nitrogen or helium for MS5000 allows to record spectra in frozen solutions. A 1:1 mixture of ethylene glycol and water for instance provides information about the coordination geometry. The hyperfine splitting of these anisotropic signals reveal if the coordination is tetragonal planar or tetrahedrally distorted.
full range from 93 K to 473 K (liquid nitrogen)
low-temperature <10 K (liquid helium)
highest throughput for inline-testing
liquid samples only
Optical irradiation via LED (different wavelengths available)
Two ranges of continuous spectra also available
Bench-Top ESR Spectrometer