BÜCHI Labortechnik AG

- Model N-500 - Modular FT-NIR Spectrometer



The N500 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.

Reliable and flexible

  • Precise and accurate analysis results due to highest wavelength precision
  • Direct and effortless transfer of calibrations from instrument to instrument
  • Precisely analyzes different types of sample (solid, powder, tablet, granule, paste, liquid, etc.) by dedicated measuring options.

Fast, safe and easy

  • Delivers results in seconds
  • Obtains several parameters simultaneously
  • No chemicals or solvents
  • User friendly and intuitive handling

Highly efficient

  • Fast analytical results allow rapid process optimization
  • Low cost of ownership as (common spare parts are user-exchangeable, no periodic instrument re-calibration required etc.)
  • Continuous operation due to the twin lamp safeguard


The BUCHI polarization interferometer

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.


The Twin Lamp Module

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.


The Integrated Standards

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.


NIRSolutions Feed and Forage

Test raw materials, premixes and finished products for

  • moisture
  • fat
  • protein
  • ash and fiber
  • ADF and NDF
  • amino acids


NIRSolutions Academia

  • Make new discoveries with BUCHI NIRSolutionsTM.
  • We support the researchers efforts with flexible products coupled with our application expertise.


NIRSolutions Environmental Analysis

Customize accurate calibrations to measure

  • moisture, organic carboon and total nitrogen content of soils
  • fertilizers formulation
  • biogas potential of biodegadable feedstock and urban waste


NIRSolutions Food and Beverage

Control dairy, meat, milling and other food products for

  • moisture
  • macronutrients
  • ash and fiber
  • rheological properties


NIRFlex N-500 with Solids Cell N500-001

Measurement of powder, solid, granules and cream samples in diffuse reflectance mode or liquids and suspensions in transflectance mode.


NIRFlex N-500 with Liquids Cell N500-002

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.


NIRFlex N-500 with Solids Transmittance Cell N500-010

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.


NIRFlex N-500 with Fiber Optic Solids Cell N500-007

On-site raw materials control for powders, granular materials, solids and creams in diffuse reflection mode, as well as liquid samples in transflectance mode.


NIRFlex N-500 Fiber Optic SMA Cell N505-000

Cell for reflectance as well as transmission measurement. Possibility to plug separate probes and fiber optic cables.

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