QE Pro Raman Series
The QE Pro-Raman product family comprises preconfigured spectrometers for 532 nm,…
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QEPRO-RAMAN-532
The QE Pro-Raman-532 is a preconfigured spectrometer for 532 nm Raman excitation, using a 1200 lines/mm grating and 25 µm slit. Additional Raman configurations (for 785 nm excitation and other wavelengths) are possible using a custom-configured QE Pro spectrometer.
Designed with gold-coated mirrors and a back-thinned FFT-CCD detector, the QE Pro offers a low noise floor even at long integration times. Its ability to deliver sharp peaks from very weak Raman signals makes it an excellent choice for general Raman spectroscopy of chemicals and organic materials, which benefit from reduced autofluorescence that results in better overall signal to noise.
Features
- Portable
- Sensitive
- Powerful
- Stable
specifications
Spectroscopy: |
|
|---|---|
| Raman Shift | 150cm(-1) – 4000cm(-1) |
|
Optical Resolution |
0.42 nm FWHM (typical) |
| Integration Time | 8ms – 3600s |
| Dynamic Range | ~85,000:1 |
| Input Fiber Connector | SMA 905 |
| Onboard Memory | 15,000 spectra |
|
Signal to Noise Ratio |
1000:1 (single acquisition) |
Detector: |
|
| Grating | GRATING_#H6 |
|
Detector |
Back-thinned, TE Cooled, 1044 x 64 element CCD array |
| Entrance slit | 25 µm |
| Quantum Efficiency | 90% (peak) |
Electronics: |
|
| Power Requirement | Supply voltage: 4.5 – 5.5 V |
| Strobe Functions | continuous and single strobe |
Communications: |
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| Wired | USB 2.0, 480 Mbps (USB 1.1 compatible); RS-232 (5-wire) |
Environmental: |
|
| Humidity | ≤ 90% noncondensing |
| Operating Temperature | 0 °C – 50 °C |
Physical: |
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| Dimensions | 182 mm (7.17 in.) x 110 mm (4.33 in.) x 47 mm (1.85 in.) |
| Weight | 1.15 kg (2.6 lbs.); power supply: 0.45 kg (1 lb.) |
Manufacturers
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Industries
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Methods
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Spares and accessories for QEPRO-RAMAN-532
SERS Substrates
Surface-enhanced Raman spectroscopy (SERS) substrates let you make fast, repeatable measurements for the identification and quantification of SERS-active analytes. Typical applications include trace level detection of narcotics, pesticides and taggants. Here are some key applications:
- Detection of narcotics. Fast identification of drugs in the field is a real boon for those combating drug-related crime. Often only small residues of a sample can be collected from a crime scene. SERS also opens up a potential route for fast roadside drug screening of drivers using saliva samples.
- Food safety. Certain additives such as melamine found in milk powder can be extremely harmful even at very low concentrations. Using SERS, we can qualify and quantify the level of dangerous trace elements in our food supply chain.
- Anti-counterfeit tagging. High value products that are subject to duties and taxes — petrol is one example — are often the target of piracy and fraud. By adding a small amount of a SERS-active taggant to the unadulterated product, detecting the taggant becomes an instant indicator of authenticity.
General Purpose Raman Probes
Raman probes consist of a fiber bundle to route excitation light from the laser to the sample and collect Raman scattered light. Light at the laser wavelength (Rayleigh scattering) is rejected on the path to the spectrometer using a dichroic filter to avoid saturating the detector.
Several versatile Raman probes are available for lab applications. Excitation wavelengths include 532, 638, 785 and 1064 nm, and both FC and SMA 905 probe terminations are available.
Raman Sample Holders
Ocean Insight offers sample holders for Raman analysis of liquids and solids. The holders accommodate Raman probes from 9.5 mm-12.7 mm diameter, and 1 cm pathlength cuvettes and vials of various dimensions.
The RM-SERS-SHS holder is ideal for surface enhanced Raman spectroscopy (SERS) substrates, which comprise nanoparticle chemistries on slides. The holder accommodates standard glass SERS slides and connects to a Raman probe.
The RM-LQ-SHS holder accommodates vials and cuvettes. It has a magnetic cover, making it easy to load and unload samples, block ambient light, and improve the accuracy of Raman measurements.
Two other options are available: the OOA-RAMAN-SH sample holder for vial and cuvette measurements; and the multipurpose OOA-HOLDER-RFA for Raman, fluorescence, absorbance and reflection measurements.