Spectroscopy instrumentation – FTIR ATR Fiber Optic Probes

FlexiSpec® product line from Optromix is the latest generation of Attenuated Total Reflection Near & Mid IR-fiber ATR-Probes produced for any type of FT-NIR, FT-IR and other IR-spectrometers, photometers and IR-LED or QCL spectral sensors. ATR immersion fiber optic probes with patented design are suitable for reaction monitoring in the labs, pilot plant and for fully automated process control.


ATR Probes for the use in any type of FT-NIR, FT-IR, photometers, and IR-LED or QCL spectral sensors

IR fiber ATR probes with PEEK shaft for use in small lab reactors and open vessels

HT-ATR immersion IR-fiber probes for harsh application conditions

IR-ATR Fiber probes with no need to be taken out from the reactor during the reactor sterilization process

ATR Loop Infrared PIR-fiber probes for use with FTIR and other Mid IR spectrometers

There are two available categories of Optromix FlexiSpec® products:


The standard products include preconfigured probes and probe couplers, which can be implemented in the laboratory, pilot plants or in production.


Customized products allow users to choose custom configurations of fiber probers and couplers based on their unique process requirements. You can find additional information regarding spectroscopy fiber products on our website.

FlexiSpec® family of Immersion Fiber Probes consists of ATR, Transmission, Transflection, Fluorescence, and Diffuse Reflection probes, all of which are compatible with any FT-MIR, FT-NIR or dispersion spectrometer process-photometer, IR-LED or QCL spectral sensor to use in-line for PAT-applications.
Any FTIR-spectrometer can be coupled with FlexiSpec® Fiber Probe Couplers (FPC) with various fiber optic probes. FPC upgrade the spectrometers in order to eliminate sampling and run reaction monitoring in-line. Optromix fiber probe couplers provide high coupling efficiency for ATR-Absorption, Transmission or Reflection process-spectroscopy in a spectral range from UV to Mid-IR, which allows the fiber coupled FTIR spectrometer to not only be used with LN-cooled MCT-detectors, but with uncooled detectors as well.

FlexiSpec® probes advantages:
● The design of FlexiSpec® probes makes them cleanable in processes where probe optics can be contaminated by media;
● FlexiSpec® fiber probes are compatible with process-interfaces SensoGate-FOS and Ceramat-FOS with approved fittings to secure their semi or fully automated use in complete process control systems;
● The fiber probes can be retracted, cleaned and calibrated during a chemical process, which enables remote process-control in any liquid, gas or solid mixtures under harsh environmental conditions;
● Optromix fiber probes facilitate qualitative and quantitative product analysis, makes the determination of specific chemical and physical properties possible.