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Chemical
Absorbance & more
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UV-VIS &
NIR systems for chemical absorbance measurements 190-2300nm
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Spectrochemistry
Systems include a miniature spectrometer, light source, and
sampling accessory such as cuvette holders, dip probes, &
flow cells
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SpectraWiz
Software has built in features for ChemWiz Concentration Analyzer
with multivariate chemometric options
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Episodic capture
for kinetics, time series analysis, & batch monitoring
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Easily convert
to fluorescence or reflectance for multi applications
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Great for
Teaching Labs, Research, Process Control & much more!
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Also see details
about our Fluorescence
and Raman Systems
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Spectrometers
for Chemistry Applications
StellarNet miniature research grade spectrometers allow
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® Software Suite. StellarNet Chemical
Absorbance Systems reliably measure absorbance and concentrations
and have applications in the food & beverage,
petrochemical, pharmaceuticals, raw material
industries.
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![](Low-cost-spectrochemistry-configuration-300x187.jpg)
StellarNets Low Cost UV-VIS Spectrometer system is
composed of the BLACK-Comet research grade concave grating
spectrometer, a SL5 high stability light source with integrated
cuvette holder, and an optical coupling fiber.
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The
BLACK-Comet series of concave grating spectrometers
cover wavelength ranges 190-1100nm in four different configurations.
The BLACK-Comet utilizes aberration corrected optics allowing
for enhanced UV sensitivity, reduced stray light, uniform
resolution, and superb spectral imaging. |
![](RED-Wave-NIR-Spectrometer-StellarNet.jpg) |
The
RED-Wave NIR InGaAs series
spectrometers cover the near infrared 900-2300nminfrared wavelength
regions from 900-2300nm with either 512 or 1024 element cooled
photodiode arrays. StellarNets spectrometers are ruggedized,
durable, and the perfect instrument for any lab or field application. |
StellarNet
UV-VIS-NIR systems covers a 190-2300nm range with fiber
optic light sources and accessories. Click on the tabs above
for light source and sampling accessory options!
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SpectroFluorometer Overview |
StellarNets
line of research grade fluorescence systems are designed for
a wide range of applications requiring eXtreme sensitivity.
Choose from our research grade BLACK-Comet with concave grating
optics or our high performance SILVER-Nova with Thermo Electric
Cooling (TEC). Sample types include powders, liquids, films
and surfaces and there are options for cuvette, probe, and/or
flow cell accessories. As always, StellarNet instrumentation
is built modularized, compact, and rugged for field, process,
or lab environments.
The compact
spectrometer is the main component of the system and is preconfigured
with high throughput optics and a larger entrance slit, low
noise circuit design, and an ultra-sensitive detector array
for extreme low-light level detection from 200-1100nm.
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![](StellarNet-SpectroFluorometer-300x300.jpg)
SpectroFluorometer System consisting of High Sensitivity SILVER-Nova
TE Cooled Spectrometer, CUV-F, and the SL1-LED excitation
source
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![](BLACK-Comet-TEC-300x233.png) |
BLACK-Comet
concave grating spectrometers have ultra low stray light and
enhanced sensitivity due to their superior grating technology.
As opposed to the industry standard Czerny Turner optical design
used in most miniature spectrometers, which employ mirrors and
a plane grating, the BLACK-Comets concave grating is the
sole element in the optical grating design, thus reducing the
amount of surfaces in the light path. Scattered light is thus
drastically reduced to 0.02% at 435 nm and 0.2% at 200 nm. The
BLACK-Comet grating has an f-number of f/2 which provides nearly
4-5 times the system light collecting ability compared to competing
models with f-numbers of f/4 and f/5. Additionally, the aberration
corrected grating provides broadband uniform resolution and
excellent spectral shapes. BLACK-Comet TEC models with advanced
cooling options are available since 2016. |
![](silver.png) |
StellarNets
SILVER-Nova wide range spectrometer includes an integrated
thermo electric cooler (TEC) added to the detector array to
maintain -15 °C from ambient and achieve a +/-0.1 °C
temperature stabilization increasing the S/N ratio by 60% at
long exposure times, thus dramatically enhancing the instruments
dynamic range. Also, the SILVER-Nova contains a large detector
lens assembly increasing photon collection ability by 3-4x with
600 and 1000 micron diameter input fibers. These design optimizations
make the SILVER-Nova TEC spectrometer one of the premier miniature
spectrometers for low light detection. |
StellarNet
fluorescence systems are rugged and shock-proof with no moving
parts and are suitable for field applications, factory and
industrial conditions; even perfect for a standard laboratory
benchtop!
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SpectroColorimeter
Sample Spectra |
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![](StellarNet-Dwarf-Star-NIR-Spectra-of-amino-acids.jpg) |
Spectrum of simulated chemical reaction using SpectraWiz software
allows for time series analysis of batch titrations and in process
monitor and control.
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SpectraWiz software interface displaying raw NIR reflectance spectra
of dietary supplement powders with inset multivariate calibration
model
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![](DWARF-Star-NIR-spectrometer-spectra-of-water-in-acetone.jpg) |
![](DWARF-Star-NIR-spectrometer-plastic-spectra_copy1.jpg) |
DWARF-Star NIR Spectrometer
SpectraWiz Software displaying a time series increase of NIR water
absorption bands.
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2nd Derivative data using SpectraWiz of various plastics, used for
identification in recycling plants
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SpectroFluorometer
Sample Spectra |
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![](Ln3-Luminescence.jpg) |
![](Fluorescence-Spectra-of-Rocks-and-Minerals.jpg) |
Powder Lanthanide complex luminescence using BLACK-Comet spectrometer
and R600-8-UVVIS-SR fluorescence probe with 7 optical fibers bundled
around 1 600µm fiber. For fluorescence measurements the 7 exterior
fibers are illuminated by a high output excitation source such as
our SL1-LED and the interior fiber collects light emission and returns
the signal to the spectrometer. Inline filters can be added to the
system to remove excitation wavelength artifacts.
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Fluorescence Spectra of Fluorite (blue), Wernerite (yellow), Calcite
(pink), & Tremolite (orange) using a StellarNet preconfigured
Fluorescence System
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