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StellarNet miniature research grade spectrometers
allows for low cost measurements in the UV-VIS-NIR
wavelength ranges. These instruments
can measure species absorption,
emission, fluorescence, transmission, concentration, and
color, using the free
SpectraWiz® operating
software for any version of Microsoft
Windows right on your desktop or portable notebook
computer. The
BLACK-Comet series
concave grating spectrometers cover wavelength ranges 190-1100nm
in four different configurations. The superior concave
grating and silicon based CCD allow for accurate and reliable
measurements at an unmatched cost. The
RED-Wave NIR InGaAs series spectrometers cover the near
infrared wavelength regions from 900-1700nm with either 512 or
1024 element cooled photodiode arrays with extended ranges also
available. StellarNet's series spectrometers are
ruggedized, durable, and the perfect instrument for any lab or
field application.
Spectrum of simulated chemical reaction using
SpectraWiz software allows
for time series analysis of batch titrations and in process
monitor and control.
StellarNet
Accessories- Dip probes used to measure absorbance, color, and
analyze concentrations
of liquids for in process and kinetics studies.
ChemWiz Concentration Analyzer
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Application panel works with live spectra to allow
concentration
calibration using single wavelength PLS.
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Load previously developed PLS chemical calibrations for concentration
display of unknown samples.
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Episodic capture for kinetics and time series analysis
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Performs single wavelength linear PLS calibrations.
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Ideal for in-line batch and on-line process monitoring
UV-VIS & Fluorescence Measurements
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low stray
light concave gratings optics allow Deep
UV measurements
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Concave gratings provide uniform
resolution over 190-1100nm
- LED excitation source for
low cost alternative to laser or bandpass filters
2nd Derivative data using
SpectraWiz of various plastics,
used for identification in recycling plants
Power and
InterFace
Portable spectrometers
include a high speed plug & play interface using USB-2
connection and +5VDC power adapter for
120VAC-60H. For usage outside the U.S.A.,
we offer an upgrade to universal power adapters. For portable notebook computers that don't have a USB-2
port or an EPP capable printer port, we offer the PCMCIA card style
EPP interface. |
StellarNet SpectroChemistry Systems-
UV-VIS-NIR system
covering 190-2300nm range with fiber optic light sources and
accessories.
Quick
Facts-BLACK-Comet
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Concave grating provides high sensitivity
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Consistent resolution
throughout wavelength range (due to flat field
created by special concave grating)
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No mirrors for lowest possible stray light
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Extremely rugged with no moving parts
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Shock-proof durability and permanent alignment
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Miniature size, low cost, portable
instrumentation
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Battery pack options for field measurements
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Simple USB2 interface to notebook & desktop PCs
See more about
StellarNet's Concave Grating Spectrometers!!!
Transmission/Absorbance Measurements
- Dip Probe – fast, easy sampling
of liquids.
- ATR probes available for dark,
viscous liquids
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Cuvette – 1cm
standard pathlengths
- Adjustable fixtures available
for longer cells
- Integrated cuvette/light sources
- Compact, cost-effective
alternative
NIR
for Compound Identification
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Neural Network
software package available for quantitative analysis of
unknown samples.
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Measure from 900nm up to
2.3 um.
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Combine with UV-VIS
system to cover entire the 200-2200nm range
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Perform color and compound ID analysis in real-time
SpectroChemistry Accessories
Introduction into Near-Infrared Spectroscopy
The near-infrared (NIR) region of
the spectrum extends from the upper wavelength end of the visible region
at about 770nm to about 2500nm (13,000 to 4,000cm-1.
StellarNet RED-Wave-NIR and NIRX-SR model spectrometers extend to 2300nm
capturing some of the most valuable absorption bands in the near
infrared. These bands are overtones or combinations of fundamental
stretching vibrational bands. The bonds involved are usually C-H,
N-H, and O-H. Because the bands are overtones or combinations
their molar absorptivities are low. Quantitative determination of
species, such as water, protiens, low molecular weight hydrocarbons, and
fats in product s of the agriculture, food, petroleum and chemical
industries. Both diffuse reflection and transmission measurements are
used, although diffuse reflection is by far the most widely used.
StellarNet offers TXF transmission fixtures and RFX reflection fixtures
to facilitate these measurements.
To learn more about Near-Infrared
Absorption and Reflectance spectoscopy visit our
Applications page!!!
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