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Laser induced breakdown
spectroscopy
for forensic science
Ecco is a new turnkey system from Foster &
Freeman designed to generate and compare laser induced breakdown
spectra.
A simple-to-use bench top instrument, Ecco
provides elemental analyses of
materials such as glass, paint and bullets and can be effective
in matching
or identifying substances of forensic value.
Ecco features include:
- Q-switched YAG laser with 1064nm emission
- wavelength range 200-600nm
- sample viewing video camera
- XYZ sample positioning/focusing stage
- firewire and USB interfaces to a PC
- comparative display of spectra
- forensic casework management system
- full laser safety features
- full technical back up and training.
Laser Induced Breakdown spectroscopy (LIBS)
LIBS, is a relatively new technique for the analysis of materials
which has
been made possible by the advent of very high intensity pulsed
lasers.
These provide enough energy in a brief instant to vaporise
matter and raise
its temperature by thousands of degrees. The excited matter
produced by
the laser pulse subsequently emits a characteristic visible
spectrum as the
various elements return to their normal temperature state.
The spectrum can be used to identify many of the basic elements
in a
substance and for identifying or distinguishing between substances
by
means of spectral comparison. Ecco can be used as an alternative
to
conventional analytical techniques such as mass spectroscopy.
LIBS with Ecco is fast and simple to perform with minimal
sample
preparation and only requires a basic technical understanding
to achieve
reproducible results. Once the operator has located and focused
on to the
sample for analysis a spectrum takes only a few seconds to
capture and
the spectra from two or more samples may be readily displayed
for
comparison.
Ecco provides you with a turnkey system
complete with PC, interfaces and
software for the rapid analysis of forensic material. Foster & Freeman
guarantee you the technical support to use the LIBS technique
effectively.
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