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The modular FT-NIR spectrometer
The N-500 FT-NIR spectrometer provides reliable analysis results for quality control as well as research and development in the pharmaceutical, chemical, food, beverage and feed industry. The NIRFlex N-500 offers a wide range of measuring cells and accessories for highest performance.
What are my commercial benefits of using NIR spectroscopy?
Research and quality control laboratories benefit from NIRS alike. While researchers can accelerate their experimentation, QC departments benefit from the ability to analyze hundreds of samples per day – both saving substantial amounts of time and money.
How does a polarization interferometer work?
The heart of the interferometer consists of two bi-refringing crystal wedges. By moving one wedge, a part of the light undergoes a phase shift. This phase shift alters the polarization of the entire beam. After passing a polarization filter the interferogram is detected. All wavelengths are measured simultaneously.
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BUCHI has adapted the successful quartz polarization interferometer by using crystals with a very high refractive index. This leads to optimum resolution and a compact design maintaining the advantage of insensitivity to mechanical disturbances. The reason for the superior performance of this interferometer in rough environments is the difference of spatial movements and the optical path shifts for the two light beams in a birefringent crystal of variable thickness. Whereas in a Michelson type interferometer mechanical distortions directly affect the interference, such effects are reduced by a factor of 10 to 20 in a crystal interferometer.
BUCHI has set a new standard in terms of the availability of an NIR spectrometer.Our NIR spectrometers are equipped with a twin lamp module, which will automatically switch to a second integrated lamp in the event of a failure of the primary source. This minimizes the risk of an instrument failure, and sufficient time is left to order a replacement lamp. Meanwhile you can continue your measurements without further intervention.
Each BUCHI FT-NIR spectrometer is equipped with various gray filters and a wavelength standard. They enable wavelength accuracy, signal-to-noise ratio, and linearity to be checked using specially designed software modules. These measurements form the System Suitability Test (SST), which is indispensable in the pharmaceutical industry in order to meet regulations.
Quickly find relevant precalibration details and expected performance for your application using the on-line NIR applications finder.
There is no need for instrument calibration. The term “calibration” is used in NIR with two different meanings:
Replace completely the reference analytics is not the target. NIR spectroscopy is a powerful technique to rapidly and reliably screen samples and therewith eliminate a lot of routine analysis. A limited amount of reference analysis is still needed to develop the initial calibration models and to periodically verify their performance.
While the number of parameters measurable within a calibration model is only limited by computing power and complexity of the analysis, it is common to analyze 15-30 properties at the same time.
For modern instruments 8 cm-1 resolution is optimal for NIR measurement. As NIR spectral bands are relatively broad, higher resolutions do not improve the performance of NIR application. On the contrary, higher resolution spectra have a poorer signal-to-noise ratio within a given measurement time.
Measurement of powder, solid, granules and cream samples in diffuse reflectance mode or liquids and suspensions in transflectance mode.
Measurement of clear liquids in transmission mode. Possibility to work with cuvettes of 1, 2, 5 and 10 mm path lengths, as well as disposable vials. The configuration allows multiple samples measurement sequence up to 6 positions.
Cell for reflectance as well as transmission measurement. Possibility to plug separate probes and fiber optic cables.
Measurement of solid samples like capsules and powders in diffuse transmission. Various sample plates are available to fit tablets with a wide range of size and shapes.
On-site raw materials control for powders, granular materials, solids and creams in diffuse reflection mode, as well as liquid samples in transflectance mode
Test raw materials, premixes and finished products for
Make new discoveries with BUCHI NIRSolutionsTM. We support the researchers efforts with flexible products coupled with our application expertise.
Control processes by
Perform regulatory compliant
Customize accurate calibrations to measure
Control dairy, meat, milling and other food products for
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