Choose another division
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"...
For Sales, Technical Support, Service and other General Enquiries
Detecting traces of paramagnetic impurities | Mineral structure |
Classifying on the geological time scal
Minerals are naturally grown crystals. Their chemical composition can be very complicated compared to synthetic crystals. “Pure” minerals are mostly ESR-inactive. However, impurities, such as Manganese or Vanadium, as well as ionizing radiation, can cause a hole or a vacancy in the structure, thus “activating” the mineral for ESR.
Transition metal impurities can be detected down to smallest concentrations. Irradiated minerals can be analyzed for their physical-chemical behavior. Natural radiation enables dating application by ESR and TL-OSL.
Quartz is a silicon oxide of the chemical structure SiO2. A pure quartz is ESR-silent. However, it shows distinct ESR signals upon irradiation.
A research group from New Zealand investigated the radiation-induced defects using ESR. α-quartz crystals were irradiated with gamma-rays and measured with an X-Band ESR spectrometer. The results indicated an oxygenic electron hole. Further analysis of the data (hyperfine splitting, spin-Hamiltonian) revealed more details about the interactions in the structure and the preferable location of the defect.
N. S. Lees, C. J. Walsby, J. A. S. Williams, J. A. Weil, R. F. C. Claridge (2003): EPR of a hydrogen/double-lithium centre in a-quartz. Physics and Chemistry of Minerals 30, 131 - 141
Bench-Top ESR Spectrometer