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Fourier Transform Infrared Spectroscopy - FTIR


Fourier Transform Infrared Spectroscopy (FTIR) is a technique used to obtain an infrared spectrum of absorption, emission, photoconductivity or Raman scattering of a solid, liquid or gas. An FTIR spectrometer simultaneously collects high spectral resolution data over a wide spectral range. This confers a significant advantage over a dispersive spectrometer which measures intensity over a narrow range of wavelengths at a time.


  • Powerful MainFTOS Suite software comes with specialized IR libraries, real-time instrument status diagnosis, modular platform design, FDA CFR 21 Part 11 Compliance, and auto software updating. It is also compatible with all windows versions.
  • High sensitivity optical system ensuring long term stability, without the need of dynamic alignment which needs extra complicated electronic circuits.
  • High stability modular partition design greatly improves the mechanical stability and long term working stability of the instrument.
  • Intelligent multi-sealed moisture-proof design for preventing influences of high temperature, high humidity and chemical corrosions to the optical system in many ways.
  • Innovated integration electronic system ensuring high quality real-time data collection and high-speed transmission.
  • The electronic system is designed to meet CE certification and electromagnetic compatibility requirements, minimizing electromagnetic radiation in design and technology.
  • High intensity, long lifetime IR source module, with the highest energy distributed in fingerprint region, adopts a reflex sphere design to obtain even and stable IR radiation.
  • The sampling compartment reserving accessory mounting holes on the base plate, is designed for various accessories such as Defused/Specular Reflection, ATR, Liquid cell, GaS cell, and IR microscope etc.


Cube-corner Michelson interferometer

Beam splitter

Multilayer Gecoated KBr


Room temperature DLATGS module (standard)

Temperature stabilized, high sensitivity DLATGS module (optional)

IR Source

High intensity, long lifetime, air-cooled IR source

Wavenumber Range



0.85 cm-1

Signal to noise ratio

Better than 20,000:1 (RMS value, at 2100cm-1 ~ 2000cm-1 or 2100cm-1 ~ 2200cm-1, resolution: 4cm-1, detector: DLATGS, 1 minute data collection)

Wavenumber Accuracy

±0.01 cm-1

Scanning Speed

Microprocessor control, different scanning speed selectable.


MainFTOS Suite software workstation, compatible to all version Windows OS

Various specialized functional software modules (optional)


Ethernet interface (standard)

WIFI wireless communication (optional)

Data Output

Standard data format, report generation and output

Status Diagnosis

Power on self-check, real-time temperature and humidity monitoring and reminders


FDA 21 CFR Part11 compliance,IQ/OQ/PQ

Environment Conditions

Temperature: 10℃~30℃,

humidity: less than 70%

Dimensions & Weight

520 x 435 x 255mm, 24kg


Transmission sample holder (Standard)

Optional accessories such as gas cell, liquid cell, Defused/Specular Reflection, single/multi reflection ATR, etc.