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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...
Industry standard for evaluating irradiation doses on alanine tablets
Nitric oxide measurement, reactive oxygen species, oxidative stress, radical generating systems, photo dynamic therapy
Antioxidative features of foodstuff, radicals on foodstuff, radiation-induced radicals
Analysis of chemical structure of paramagnetic centers and their orientation within a crystal
Bioinorganic transition metal compounds, fenton chemistry, effect of heavy metal ions on livving tissue
Variety of free radicals in environmental applications can be evaluated by EPR spectroscopy
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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Heavy metal EPR spectroscopy is a long known application throughout all miniscope series it is a modern application for the MS5000 with best signal to noise ratio for standard and research applications. Applications reaching from biochemistry, medical application throughout chemical characterisation.
Examples for heavy metal EPR spectroscopy by Miniscope:
Heavy metals are rather efficient in catalysing chemical reaction with radicals at least as intermediates. This may in part explain their toxicity. Plant roots e.g. produce different DMPO adducts if there have been exposed to cadmium (1 µM, 1 week) or simply were grown in normal aqueous culture solution. Fig. 22 shows the result of the experiment, Fig. 23 that of the control.
While the control spectrum is dominated by a three line signal derived from a double substituted DMPO molecule the cadmium exposure resulted in an increase of the part of the monosubstituted adduct with six lines.
After incubation with DMPO the culturing medium (Fig. 24) shows an ESR spectrum different from those obtained from the roots, the three line component of the double substituted compound is replaced by another one typical for the hydroxyl adduct. Radicals must react differently in the plant tissue and in free solution .