Laboratory

BENCHTOP ELECTRON PARAMAGNETIC RESONANCE SPECTROMETER (EPR)

EPR overview

ADANI’s SPINSCAN is small, compact, and easy to handle and maintain EPR/ESR Spectrometer, and both novice and experienced users appreciate it. The SPINSCAN X spectrometer, intended for EPR spectra recording in liquid or solid phases to detect paramagnetic species or free radicals. SPINSCAN has been designed for a wide range of applications in various fields of science and technology (in physics, chemistry, biophysics, geology, medicine, among others.

The main distinctive features of benchtop EPR/ESR Spectrometer SPINSCAN X are a compact design of electromagnet and microwave bridge. The instrument’s sensitivity and resolution can only be bettered by systems many times its price and size.

The electromagnet supplied with the SPINSCAN X system features three-inch diameter pole caps, which provide a field up to 7000 Gauss. The pole caps are shimmed to provide a homogeneous magnetic field over the cavity’s entire sample area. The reduced magnet gap of 1 cm results homogeneously equal to a 4 inch larger magnet. The electromagnet has an effective air fans system, and the water cooling radiator is available as an option and would still be recommended due to its high efficiency.

The microwave bridge provides a highly stable frequency and power output from 0 up to 40 dB with a reliable solid-state Gunn oscillator, operating at approximately 9.4 GHz. The resonance frequency, the phase, and the bias are automatically adjusted whenever the sample is changed. The upgraded MW bridge tuning system of the SPINSCAN X model has better reproducibility and allows for varying and optimizing the auto-tuning time for the selected type of samples easily by the user. The tuning can be performed by the operator manually as well.

The integration of a logarithmic RF power detector into the system allows to set up and control of the MW power with the accuracy of +/-0.2dB.

ADANI’s SPINSCAN X uses a rectangular TE 102 microwave cavity with a center frequency of approximately 9.35 GHz and an unloaded Q of 5000. Its variable iris aperture matches a wide range of sample holders and Dewars, with a maximum diameter of 11 mm.

The magnetic field in the cavity may be modulated up to 10 gauss peak-to-peak at 100 kHz, but magnetic field modulation is chosen from the range of 10 to 250 kHz.

Built-in frequency counter makes the g-factor calculation automatically, and its value is displayed after the measuring is completed.

Users do not need to think now about the gain value – due to a broad signal channel dynamic range; the signal amplitude will be scaling at one scan for the maximum signal-to-noise ratio that we can achieve.

The SPINSCAN X ESR/EPR provides a fully computer-controlled system including a comprehensive software package e-Spinoza for acquisition and processing data.

Due to its high quality and low cost, the SPINSCAN X is an ideal instrument for routine measurements in any laboratory, especially for education and postgraduate research. When utilizing additional options and scripting programs, the spectrometer can become a high-quality research instrument for developing its commercial applications in medicine, pharmacology, and in food control, dosimetry, and control of petroleum products and in other industries.

SPINSCAN X

Transition metals play a fundamental role in biological processes, in catalysis, in materials science. Benchtop Electron Paramagnetic Resonance Spectrometer (EPR) ADANI SPINSCAN X is excellent instrument for analyzing the transition metal complexes and free radicals in liquid or solid. Its delivers powerful performance and extremely compact size and low weight at minimized costs. SPINSCAN X makes possible to observe in-situ the reactions generated by optical CW and pulsed illumination, by chemical additions and under sample heating and cooling.

SPINSCAN X is useful tool for spin trap or spin labelling techniques, for studies of the polymerization and degradation reactions, for alanine and food dosimetry. SPINSCAN X is affordable equipment for postgraduate research and education.

SPIN trapping & spin labelling

A large variety of spin traps and probes for the detection of general or specific free radical species are available for studying different properties and processes in biochemical, biological and other systems.

Bench top EPR spectrometer SPINSCAN X with the sensitivity and resolution parameters comparable to large systems make it possible the detection and identification of free radicals with high specificity.

For the measurement you need just a small samples volume (~50-100 μL) even at nanomolar concentrations of paramagnetic species. SPINSCAN X is good solution for the routine measurements in any laboratory.

Food dosimetry

If you will see the label Radura on the foodstuff it is indicating they have been treated with ionizing irradiation what is similar to pasteurization.
Irradiation of alimentary goods to preserve them from microorganisms and extend the shelf-life of foods is technologically advanced, secure and of low cost. It keeps products’ natural taste and attractiveness.

The advantage of this method is the ability to process them packaged, while the products do not form radionuclides, producing free radicals. Currently a large number of products are exposed to irradiation: meat, seafood, fruits, vegetables, cereals, spices. The dose rate depends on the product type.

Education

SPINSCAN XEDU, benchtop EPR spectrometer and its educational kit, are an excellent solution for educators and students to go deep into electron paramagnetic or resonance spectroscopy (EPR or ESR) by using well-established methods.

It is a suitable unit for individual as well as groups of undergraduate tudents, postgraduates, and researchers who intended for advanced materials’ research work.

Educational Kit includes a step-by-step procedure of numerous EPR techniques and laboratory exercises

Electrochemistry and EPR

SPINSCAN X and newly designed disposable two-electrode electrochemical cell for in-situ electron paramagnetic resonance (EC-EPR) spectroscopy with small portable potentiostat open the gate for new analytical applications.

It is ideal for both electrochemical and simultaneous EPR measurements as it is easy to handle and mounting. The electrochemical EPR experiment running under the control of a basic software package.

This solution can be efficiently used to study short live radicals or redox mechanism

Food science

Foods and beverages stability and antioxidant properties
Foods and drinks these days are subjects of intensive investigation, and their benefits are correlated with their antioxidant properties as well as stability is becoming increasingly important as its essential quality. SPINSCAN X can provide such control with the EPR spin trapping technique.

Alanine dosimetry

EPR spectroscopy is an extremely specific technique for studying reactions of radiation and photo-induced polymerization, free radical and redox polymerization; for the mechanism of the photo, radiation, and mechanic destruction of polymers.
EPR Spectra of spin probes and spin labels as well are very sensitive to phase conformation of the polymer solution. Process EPR Analyzer SPINSCAN X can monitor online the phase separation of polymer solution during its production.

The aging of the polymer materials caused by their structure and environmental conditions can be diagnosed by EPR spectroscopy. The process of degradation became clear by direct detection of the intermediary radicals and EPR Spin Trapping technique.

SPINSCAN X EPR spectrometer and variable temperature control system from -170C up to +550 C with window and UV accessories for irradiation deliver powerful capabilities for monitoring of free radicals in the cavity under thermal and UV treatment of polymers in – situ.

Polymers

An EPR spectrometer SPINSCAN XDS meets all requirements of standard practice for alanine-EPR dosimetry systems according to ISO/ASTM considering all types of alanine dosimeters forms (pellets, films, capsules, etc1).
SPINSCAN XDS has controlling and data acquiring software to perform the validation and calibration.

The alanine dosimetry system is recommended for irradiation centers that do food irradiation, polymer modifications, medical and pharmaceuticals products sterilization, and radiation damage studies in materials.

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