FTIR Spectrophotometer

What is FTIR Spectrophotometer?

Fourier transform infrared spectrometer is abbreviated as FTIR. It is mainly composed of the infrared light source, interferometer, sample chamber, detector amplifier, an analog-to-digital converter (A/D), and computer composition.

Principle: It is different from the principle of dispersive infrared spectroscopy. It is an infrared spectrometer developed based on the principle of Fourier transformation of infrared light after interference.

Usages: It can carry out qualitative and quantitative analysis of samples and is widely used in the fields of medicine and chemical industry, geology and mining, petroleum, coal, environmental protection, customs, gem identification, criminal investigation identification, etc.

FTIR Spectrophotometer

Advantages of FTIR Spectrophotometer

  • High sensitivity and stability
  • Intelligent real-time monitoring of instrument status
  • Multiple communication
  • Flexible and convenient testing
  • Powerful software workstation
  1. High sensitivity optical system: cube-corner Michelson interferometer combined with patented fixing mirror alignment technology
  2. High stability modular partition design, greatly improves the mechanical stability and long-term working stability of the instrument.
  3. Innovated integration electronic system, high sensitivity pyroelectric detector pre-amplifier technology, dynamic gain amplification technology, high precision 24-bit A/D conversion technology, real-time control and data processing technology, digital filter, and network communication technology, ensuring high quality real-time data collection and high-speed transmission.
  4. High intensity IR source assembly: High intensity, long lifetime IR source module, with the highest energy distributed in the fingerprint region, adopts a reflex sphere design to obtain even and stable IR radiation.  External isolated IR source modules and large space heat dissipation chamber designs provide higher thermal stability and stable optical interference.

Innovations of FTIR Spectrophotometer

  1. Real-time diagnosis of instrument status: real-time monitoring of instrument working status, performance, and communication status.
  2. Multiple detector options. Besides conventional normal temperature pyroelectric detectors, temperature-stabilized pyroelectric detectors and semiconductor refrigeration MCT detectors can also be selected to meet the needs of different customers.
  3. “Wire + Wireless” multi-communication mode. Adopting Ethernet and WIFI dual-mode communication to adapt the development trend of “Internet + testing” instruments. Building a basic platform for users to conduct interconnection testing, remote operation, and maintenance, data cloud computing, etc.
  4. Large sample room. With the large sample chamber design, besides the conventional liquid pool, ATR, and other commercially available conventional accessories, it can also be equipped with special accessories such as thermal red combination, microscope, etc. At the same time, it also reserves space for users to choose new accessories.

Specifications of FTIR Spectrophotometer

Model DW-FTIR-530A
Wavenumber Range 7800cm-1~350cm-1
Wavenumber Accuracy ±0.01 cm-1
Resolution 0.85 cm-1
Detector Room temperature DLATGS module (standard); Temperature stabilized, high sensitivity DLATGS module (optional)
Beam Splitter Multilayer Ge coated KBr

Applications of FTIR Spectrophotometer

  1. Identification of known objects.
  2. Structure identification of unknowns.
  3. Quantitative analysis of special materials.
  4. Micro-infrared can analyze trace substances such as residues on the surface of the product, powder/liquid precipitated on the surface, suspected oxidation, corrosion, foreign matter, and introduction of foreign components on the surface of the product.

Among them, FTIR has an excellent performance in determining the consistency of polymer materials.

The purpose of material consistency determination:

  1. Solve the abnormal problem of the product from the aspect of the material.
  2. Monitor the product to determine whether the material has the same ingredients, the same batch, and the same manufacturer.
  3. It can effectively control the excessive use of recycled materials or scraps by plastic material suppliers.
  4. Reverse analysis of products, accurate qualitative unknown materials, and cost savings.

Application areas: It is widely used in the fields of medicine, chemical industry, geology and mining, petroleum, coal, environmental protection, customs, gem identification, criminal investigation, and identification. We provide nearly 20 detection spectra for customers to use

Application of FTIR

How to Choose the FTIR Spectrophotometer?

Please tell us your application industry, testing samples, and specific testing needs. We will recommend a configuration based on your specific experiment.


Model: DW-FTIR-530A

Optional Accessory




Gas Cell

Used to test gas

Gas Cell

Demountable Liquid cell 

Be used to non-volatile liquid samples.(with KBr window plates)

Demountable Liquid cell

Diffuse reflectance

Used for powder analysis,if the diameter of particle of sample is not less than 0.2um through being grinded.

Diffuse reflectance(1)

Horizontal ATR

Used to analyze rubber, viscous liquids, large surface samples, flexible samples, etc.

Horizontal ATR

Single reflection ATR (Diamond crystal)

Used to test polymers, rubber, paints, fibers, lubricants, etc. (high hardness) Solid

Single reflection ATR

Single reflection ATR (ZnSe crystal)

Used to test polymers, rubber, paints, fibers, lubricants, etc. (low hardness)Solid

KBr hydraulic press

Used to analyze powder or solid samples, if the diameter of particle of sample is less than 0.2um after grinding.

KBr hydraulic press

Note: The choice of accessories is usually related to the sample being tested and the status of the sample. Welcome to contact our sales to confirm.For more optional accessories, please contact sales.

Order Process of FTIR Spectrophotometer

order process

Products Display

Display of FTIR-530A

Why Choose Us for FTIR Spectrophotometer?

Other Spectrophotometers