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RSL-1 Raman Handheld System
Low-resolution Raman Spectroscopy
When a sample is irradiated with a
laser or light of a single frequency, the scattered portion
of the light consists primarily of elastically scattered
photons, or the Rayleigh component. Some inelastically scattered
photons also appear, and comprise the Raman component. The
shift in frequency corresponds to the molecular vibrational
frequencies of the sample. The Raman spectrum that results
provides information about the vibrational structure of
the sample (the fingerprint region).
Although a high-resolution Raman spectrum gives detailed
information about the vibrational fine structure of sample
molecules, most routine applications need only ~15 cm-1
resolution -- what is considered in the range of low-resolution
Raman spectroscopy -- for quantitative or qualitative analysis.
As a result, a system such as the RSL-1 can be assembled
using less expensive optics and lasers -- without sacrificing
the power of Raman analysis.
Fully Integrated, Compact System
The RSL-1 consists of all the components
needed for on-site Raman analysis, including an embedded
computer with LCD display that’s preloaded with spectral
matching software for convenient QC, verification and validation
routines. The rest of the system includes a linear CCD-array
spectrometer; a 785 nm diode laser to irradiate the sample;
a fiber optic sampling probe for liquids, solids, powders,
gels and tablets; and a 2-hour rechargeable battery. In
addition, optical fiber makes possible remote sampling at
distances of up to 200 meters.
FDA Compliance
The RSL-1 is self-calibrating and
has automated validation features. Its operating software
is compliant with the FDA’s 21-CFR-11, and includes
features such as audit logging, spectral matching, database
creation, and automatic detection of data tampering.
Specifications
| Dimensions: |
305 mm x 52 mm x 76 mm |
| Weight: |
1,724 g |
| Raman shift range: |
~200-2700 cm-1 |
| Resolution: |
~15 cm-1 |
| Laser: |
Solid-state 785 nm diode |
| Laser output: |
500 mW |
| Detection via: |
Linear CCD-array detector spectrometer |
| Sampling via: |
Fiber optic shuttered probe for liquids, solids,
gels |
| Remote sampling: |
Up to 200 meters using optical fibers |
| Battery: |
2-hour rechargeable battery |
| Computer: |
Embedded PC preloaded with spectral-matching
software |
| Calibration: |
Self-calibration and automated validation |
| Compliance: |
Compliant with 21-CFR-11 |
Contact
us for more information.
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