MS-5000 Benchtop ESR / EPR Spectrometer (ESR5000)

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Extend your laboratory’s capabilities with the next-generation benchtop EPR / ESR spectrometers from Magnettech™, pioneers in EPR spectrometry and trusted worldwide since 1992. The versatile MS-5000 is a research grade instrument with sensitivity and reliability for demanding applications.

Weighing only 99 lbs with a compact 15.6 x 10.3 x 7.6 inch footprint, MiniScope spectrometers are the perfect “everywhere” instrument. 

Looking for Quality Assurance? The MS-5000 also addresses standards EN 1786, 1787, 13708 related to irradiated food testing.

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Intuitive Operation

Focus on research and not the instrument with ESRStudio, the most modern and dynamic software for ESR measurements. Simple and intuitive operation that doesn’t require the operator to be an expert in spectroscopy.



    • Affordable, low cost of ownership.
    • Benchtop form factor accommodates mobility.
    • Simple and intuitive operation puts focus on research not instrument operation.
    • Outstanding sensitivity and stability.
    • Connectivity to a wide range of accessories to accommodate variable research applications.
    • Auto calibration and tuning to maintain accuracy, minimize maintenance and downtime.
    • Excellent sensitivity and stability to yield quality data and consistent results.
    • Works with Bridge12 Overhauser Dynamic Nuclear Polarization (ODNP) Probe


Wide Field of Applications

EPR is the only method for the direct detection of paramagnetic species. EPR/ESR spectroscopy has wide field of applications from research & development to quality control in branches like:

Life Sciences
Nitric oxide measurement, reactive oxygen species, oxidative stress, radical generating systems, photo dynamic therapy 

Bioinorganic Chemistry
Bioinorganic transition metal compounds, fenton chemistry, effect of heavy metal ions on living tissue

Environmental Toxicology
Generation of radicals by particles

Living polymers, nitroxide quantification, radicals in varnish, UV stability of scratch resistant varnish

Biophysical Features
Oxymetry, membrane fluidity, pH in micro-environment, viscosity and phase partition

Separation of Radicals
EPR/HPLC coupling

Food Chemistry and Pharmacy
Antioxidative features of foodstuff, radicals in foodstuff, radiation induced radicals

Radical protection factor, protection features of UV-filters in créme, shampoo, etc

Alanine Dosimetry
Alanine dosimetry (tablets, thin films)


Technical Specifications

Operating Frequency  X-band

5 x 1010 spins/mT

(5 x 109 spins/G)

Signal to noise ratio 600:1
Microwave power 1 μW to 100 mW
Concentration Sensitivity 50 pM
Field sweep range 0 to 625 mT (0 to 6250 G)
Field homogeneity ± 5 μT (50 mG) within sample region
Field stability 1.0 μT/h (10 mG/h)
Sweep resolution (field & time) ≥250,000 points
Reference standard optional: integrated
Magnetic field range 0 to 650 mT (0 - 6500 G), wider field ranges on request
Modulation frequency 10 kHz and 100 kHz


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