AccuScreen
includes a smart, surface-position sensing sample chamber, reproducible
loading chute and LT Industries’ proven one-thousand-wavelength NIR
spectrometer — all supported by an excellent Windows-based software
package.
AccuScreen improves laboratory efficiency
Your laboratory operations generally involve samples that reside in
standard containers — vials, cups or Petri dishes. AccuScreen is the
first NIR spectrometer system that conforms to your operating style.
Simply place a sample container on the loading chute and the system
takes over. The sample loads and analysis commences. Results appear
on-screen in seconds and are logged in the software audit trail function.
Better data
NIR is a very powerful technique. It requires development of a chemometric
calibration over time and then compares each new test sample with a
statistical model that encompasses both physical and chemical changes.
Using the AccuScreen system, samples are not touched by any sampling
device. Light beams do all of the work, so there is no sample compaction
or distortion. Fewer physical changes mean that chemometric calibrations
are more robust. Data variance is reduced and therefore, analytical
results are more reliable.
Simple to use
The instrument is remarkably free of buttons, switches or dials. The
AccuScreen control software runs every aspect of instrument operation,
data acquisition, calculation, archiving and display so that you don’t
have to. And you can trust it. Each scan of the spectrometer includes
a minimum of thirty operational system checks to assure that everything
is running the way that it should. You load the sample and start the
scan. The system does the rest within a minute!
Cost effective
Acquisition cost of the AccuScreen system is low. Compare price and
performance with other productive laboratory instruments on any basis
— price, per-sample cost, reagent cost, disposables cost, analytical
time, maintenance cost — and you’ll be favorably impressed. It’s all
because of LT Industries’ NIR Spectral Engine technology. It’s better.
The heart of the contact-free sampler
A unique combination of NIR beam focus and coaxial position sensing
allows the AccuScreen system to illuminate uncompacted powder or loose
granules to a depth determined by sample particle count, size and reflectivity.
When insertion probes are used with NIR, sample material is compressed
in a non-reproducible manner. Compressed samples are more resistant
to light penetration and may cause apparent shifts in absorption peaks.
AccuScreen systems eliminate those potential error sources. Because
operators do not interact with the sample during measurement, another
source of analytical bias is eliminated.
Sampling procedure
A wide-mouth open container is best suited for use with the AccuScreen
system. Powder or granulated sample material is simply poured into the
container so that the top surface is roughly level. Mechanical leveling
is not required. The sample container is placed onto the open sample
chute frame. When activated, the sample will slide into position. For
samples that must be protected form spillage, air or moisture effects,
the sample container may be covered with glass. Most glasses do not
have a NIR spectral signature, even when the glass surface has irregularities.
About LT Industries…
LT Industries
was recently honored by Instrumenta, the analytical
instrument industry’s news publication, on the occasion of completing
twenty years of service to the chemical community. Throughout its
history, LT Industries has developed a portfolio of patented NIR
“firsts” — all designed to enhance measurement and dynamic information
for chemical analysts. LT Industries instruments are found in laboratories,
on manufacturing plant floors and on process lines throughout the
world. LT continues to serve the manufacturing of drugs, food, fuels
and formulations that make our lives better and easier. LT Industries
slogan is “Making NIR Work”.
