ESR spectrometer - MiniScope MS 5000
Magnettech is a pioneer in the field of Electron Spin Resonance (ESR). Our benchtop MiniScope (MS 5000) ESR spectrometer is a research grade device with sensitivity and reliability for demanding applications in the field of ESR spectroscopy.
Compact size
The ideal ‘everywhere’ spectrometer, can be handled by one person and it has a very low power consumption
> 397 x 262 x 192 mm
45 kg
Stability and Sensitivity
Outstanding sensitivity and magnetic field stability, extended data detection schemes
> detection limit of 10 nM TEMPOL in water
Versatile options
Large collection of accessories for automization and specific measurements. Big collection of ESR glassware
> autosampling for liquids, powders and solid samples
Higher Sensitivity than large sized EPR/ESR Spectrometers
Why buy an expensive mammoth sized ESR spectrometer when the benchtop MS5000 can do the same job?
This is accomplished by:
· The use of modern electronic design minimizes the entire electronics to the size of a small notebook. Combination of high frequency circuits for space application enable extraordinary signal to noise ratios.
· The use of a compact high performance rectangular resonator. This allows for a small magnet air gap and consequently a very compact magnet design. However, sample size up to 8 mm is standard.
Mechanical and Electronics concept
Very compact mechanical design - the entire electronics is based on a few tiny high- tech PCB boards including microwave integrated circuits. There is almost no wiring. This results in high reliability, easy maintenance and service and a very efficient assembly during production, allowing for a high cost effectiveness.
· The system has extensive automatic self- test and calibration facilities
· All accessories such as Autosampler, Sample cooling or heating systems, Goniometer and others are connected by a proprietary bus system and can be easily attached to the main ESR system at any time
· Universal power supply 110 V to 260 V, 50/60 Hz AC which meets world wide safety and EMV standards
· Maximum power consumption at highest magnetic field is 200 W and the stand-by power consumption between measurements is very low.
· The spectrometer is completely air- cooled, no water cooling is required
· Modern software (ESRStudio) for spectrometer Operation and Data Evaluation
RF System and Signal Channel
Saturation Enhanced ESR spectroscopy
ESR- signal intensities according to the individual saturation behavior of ESR- lines. This greatly helps to identify individual lines in complex ESR- spectra. At a given microwave power and temperature, heavily saturated lines exhibit large signals whereas unsaturated lines do not show up at all.
Signal Channel Dynamic better than 140 db.
This enables the detection of extremely weak lines as well as extremely strong lines in the same spectrum. No “amplification factor” or similar needs to be set before the measurement.
Additional Features
· RF frequency counter
· Microwave power meter
· Maximum microwave power 100 mW, 60 db attenuation range
· Fully automated Q factor measurement of resonator
· Ultra-fast and stable AFC, e.g. no effect of cooling liquid bubbles
· Magnetic field modulation 100 kHz, 1 mTpp down to 1 μTpp
· 10 kHz magnetic field modulation
· Second harmonic detection
· “DC” ESR measurements without any modulation for measurements on spin systems with extremely long spin lattice relaxation (“rapid passage measurement”)
· Extremely low frequency magnetic field modulation of 5 Hz to 30 Hz for EDMR- measurements
· Automatic microwave- frequency re-adjustment of magnetic field, g- value representation of ESR spectra
· Transient measurements with time resolution down to 2 μs
Specifications for Flyer & Website
Technical specification MS 5000 MS5000X
Operating frequency X-band X-band
Sensitivity 8x 10 E9 spins/0.1 mT 5 x 10 E9 spins/0.1mT(
Single to noise ratio 600:1 1000:1
Microwave power 1 μW - 100 mW 1 μW -100 mW
Concentration sensitivity 10 nM in PBS better than 50 pM
Field sweep range 0.7 T (7000 G) 0.7 T (7000G)
Field homogeneity ± 5 μT (within sample region ±5 μT within sample region
Field stability 1.0 μT/h 1.0 μT/h
Sweep resolution (field and time) ≥ 250,000 points ≥ 250,000 points
Reference standard Integrated and motorized Integratedand motorized
Magnetic field range 25 - 650 mT -10 -650 mT ( wider field ranges on request))
Specifications for Flyer & Website
Technical specification MS 5000 MS5000X
Operating frequency X-band X-band
Sensitivity 8x 10 E9 spins/0.1 mT 5 x 10 E9 spins/0.1mT(
Single to noise ratio 600:1 1000:1
Microwave power 1 μW - 100 mW 1 μW -100 mW
Concentration sensitivity 10 nM in PBS better than 50 pM
Field sweep range 0.7 T (7000 G) 0.7 T (7000G)
Field homogeneity ± 5 μT (within sample region ±5 μT within sample region
Field stability 1.0 μT/h 1.0 μT/h
Sweep resolution (field and time) ≥ 250,000 points ≥ 250,000 points
Reference standard Integrated and motorized Integratedand motorized
Magnetic field range 25 - 650 mT -10 -650 mT ( wider field ranges on request))