Electron spin resonance spectrometers (ESR), or also known as electron paramagnetic resonance (EPR), are instruments used to rapidly identify substances or to test the purity of products without physically destroying or altering samples. ESR is especially suited for chemicals containing unpaired electrons, such as organic or inorganic free-radicals, or compounds with transition metal ions. Instead of affecting fluorescence or vibration, ESR spectrometers use photons to excite the spin of electrons. ESR can be used across various markets, including chemistry, petrochemical, food testing, biochemical and pharmaceutical, and industrial laboratories.
What are considerations when choosing an Electron Spin Resonance Spectrometer?
Aside from price point and applications (for example: academic vs industrial), other key considerations when choosing your ESR spectrometer includes the size of the system (as benchtop versions are available compared to their larger counterparts), the level of sensitivity the system can achieve, size of sample volume and analysis time.
Search and compare Electron Spin Resonance Spectrometers:
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| Company | JEOL USA, Inc. | JEOL USA, Inc. | JEOL USA, Inc. |
| Item | JES-X320 Electron Spin Resonance Spectrometer | JES-X310 Electron Spin Resonance Spectrometer | JES-X330 Electron Spin Resonance Spectrometer |
| Catalog Number | JES-X320 | JES-X310 | JES-X330 |
| Price | | | |
| Diameter | 24 cm | 15 cm | 36 cm |
| Homogeneity | 6 x 10-6 | 7 x 10-6 | 5 x 10-6 |
| Description | The JES-X320 provides high sensitivity with an easy operation environment.
Key Features
- Spectrometer designed to be user friendly
High-sensitivity ESR equipped with ultra-low noise microwave source
Easy-to-use operation interface under Windows™
Auto-tuned microwave circuit and built-in
The JES-X320 provides high sensitivity with an easy operation environment.
Key Features
- Spectrometer designed to be user friendly
High-sensitivity ESR equipped with ultra-low noise microwave source
Easy-to-use operation interface under Windows™
Auto-tuned microwave circuit and built-in frequency counter
Flexible sequential measurements including randomized values of parameters, e.g. sample temperature, angular rotation, etc.
- Low noise high stability microwave unit
The JEOL solid-state Gunn diode element provides long life (20,000 hours or more), stable operation, and high reproducibility
- High sensitivity cavity
Cylindrical type resonator TE011 can accommodate larger samples and provides for better modulation uniformity
- High-homogeneity, high resolution, high stability Electromagnets
The JES-X320 employs a magnetic field linear sweep circuit based on the magnetic field detection system using a Hall element
... Read More | The JES-X310 provides high sensitivity with an easy operation environment.
Key Features
- Spectrometer designed to be user friendly
High-sensitivity ESR equipped with ultra-low noise microwave source
Easy-to-use operation interface under Windows™
Auto-tuned microwave circuit and built-in
The JES-X310 provides high sensitivity with an easy operation environment.
Key Features
- Spectrometer designed to be user friendly
High-sensitivity ESR equipped with ultra-low noise microwave source
Easy-to-use operation interface under Windows™
Auto-tuned microwave circuit and built-in frequency counter
Flexible sequential measurements including randomized values of parameters, e.g. sample temperature, angular rotation, etc.
- Low noise high stability microwave unit
The JEOL solid-state Gunn diode element provides long life (20,000 hours or more), stable operation, and high reproducibility
- High sensitivity cavity
Cylindrical type resonator TE011 can accommodate larger samples and provides for better modulation uniformity
- High-homogeneity, high resolution, high stability Electromagnets
The JES-X310 employs a magnetic field linear sweep circuit based on the magnetic field detection system using a Hall element
... Read More | The JES-X330 provides high sensitivity with an easy operation environment.
Key Features
- Spectrometer designed to be user friendly
High-sensitivity ESR equipped with ultra-low noise microwave source
Easy-to-use operation interface under Windows™
Auto-tuned microwave circuit and built-in
The JES-X330 provides high sensitivity with an easy operation environment.
Key Features
- Spectrometer designed to be user friendly
High-sensitivity ESR equipped with ultra-low noise microwave source
Easy-to-use operation interface under Windows™
Auto-tuned microwave circuit and built-in frequency counter
Flexible sequential measurements including randomized values of parameters, e.g. sample temperature, angular rotation, etc.
- Low noise high stability microwave unit
The JEOL solid-state Gunn diode element provides long life (20,000 hours or more), stable operation, and high reproducibility
- High sensitivity cavity
Cylindrical type resonator TE011 can accommodate larger samples and provides for better modulation uniformity
- High-homogeneity, high resolution, high stability Electromagnets
The JES-X330 employs a magnetic field linear sweep circuit based on the magnetic field detection system using a Hall element
... Read More |
| Sensitivity | 6 x 109 spins / 10-4 T (at 100 kHz modulation) | 7 x 109 spins / 10-4 T (at 100 kHz modulation) | 5 x 109 spins / 10-4 T (at 100 kHz modulation) |
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