FTIR/NIR Spectrophotometer

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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.

There are many types of samples can be analyzed including bulk solids, powders, liquids or gases. Different functional groups, chemical bonds vibrate or rotate, and absorb infrared light with different wave numbers. According to the peak position, it can be determined which functional groups or chemical bonds exist in the sample, which can be used for qualitative and quantitative research on substances. It 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.

DW-FTIR-530A

Near-infrared spectroscopy (NIRS) is a spectroscopic method that uses the near-infrared region of the electromagnetic spectrum (from 780 nm to 2500 nm).

Typical applications include medical and physiological diagnostics and research including blood sugar, pulse oximetry, functional neuroimaging, sports medicine, elite sports training, ergonomics, rehabilitation, neonatal research, brain computer interface, urology (bladder contraction), and neurology (neurovascular coupling). There are also applications in other areas as well such as pharmaceutical, food and agrochemical quality control, atmospheric chemistry, combustion research and knowledge.

NIR DW-EXPEC1360A Quick Fuel Analyzer-6

Features of FTIR/NIR Spectrophotometer

FTIR Spectrophotometer Features including:

  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.

NIR Spectrophotometer Features including:

  1. Suitable for a wide range of sample types, such as granules, flakes, powders, pastes, moisture, crude fat, crude protein, crude fiber, crude ash etc.
  2. Fast analysis, results within 3/10/30 seconds.
  3. Easy operation: no special training, no sample pretreatment, no sample destruction.
  4. Software applicable to different management permissions.
  5. Reliable results – for most analyses, NIR instruments have a prediction accuracy within 1.5 times of the reference method error with much better precision.
  6. Cost effective – one analyst can typically analyze several hundred samples in a day with no consumable costs.

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

Applications of NIR Spectrophotometer

Typical applications of NIR spectroscopy include the analysis of food, pharmaceuticals, petrochemical, combustion products, and a major branch of astronomical spectroscopy.

Applications of Near-infrared Spectroscopy

1. Astronomical Spectroscopy

Near-infrared spectroscopy is used in astronomy for studying the atmospheres of cool stars where molecules can form. The vibrational and rotational signatures of molecules such as titanium oxide, cyanide, and carbon monoxide can be seen in this wavelength range and can give a clue towards the star’s spectral type. It is also used for studying molecules in other astronomical contexts, such as in molecular clouds where new stars are formed. The astronomical phenomenon known as reddening means that near-infrared wavelengths are less affected by dust in the interstellar medium, such that regions inaccessible by optical spectroscopy can be studied in the near-infrared. Since dust and gas are strongly associated, these dusty regions are exactly those where infrared spectroscopy is most useful.

2. Agriculture

Near-infrared spectroscopy is widely applied in agriculture for determining the quality of forages, grains, and grain products, oilseeds, coffee, tea, spices, fruits, vegetables, sugarcane, beverages, fats, and oils, dairy products, eggs, meat, and other agricultural products. It is widely used to quantify the composition of agricultural products because it meets the criteria of being accurate, reliable, rapid, non-destructive, and inexpensive. Abeni and Bergoglio 2001 apply NIRS to chicken breeding as the assay method for characteristics of fat composition.

3. Materials Science

Techniques have been developed for NIR spectroscopy of microscopic sample areas for film thickness measurements, research into the optical characteristics of nanoparticles and optical coatings for the telecommunications industry.

4. Medical Uses

The application of NIRS in medicine centres on its ability to provide information about the oxygen saturation of haemoglobin within the microcirculation. Broadly speaking, it can be used to assess oxygenation and microvascular function in the brain (cerebral NIRS) or in the peripheral tissues (peripheral NIRS).

5. Particle Measurement

NIR is often used in particle sizing in a range of different fields, including studying pharmaceutical and agricultural powders.

6. Industrial Uses

As opposed to NIRS used in optical topography, general NIRS used in chemical assays does not provide imaging by mapping. For example, a clinical carbon dioxide analyzer requires reference techniques and calibration routines to be able to get accurate CO2 content change. In this case, calibration is performed by adjusting the zero control of the sample being tested after purposefully supplying 0% CO2 or another known amount of CO2 in the sample. Normal compressed gas from distributors contains about 95% O2 and 5% CO2, which can also be used to adjust %CO2 meter reading to be exactly 5% at initial calibration.

What are the Advantages of FTIR?

  1. It has high characteristic for the detection of different functional groups or chemical bonds.
  2. It uses less sample, has fast analysis speed, and does not damage the analyzed sample.
  3. It can conduct qualitative and quantitative analysis of material components, and analyze a wide range of materials.
  4. It has exquisite appearance, is lightweight, and is shockproof.
Advantages of FTIR
  1. It uses Ethernet and WIFI dual-mode communication, which is convenient for users to conduct interconnected testing and remote operation.
  2. It adopts a large sample chamber design, which can be matched with a variety of infrared spectroscopy accessories for a wider range of sample analysis.

FTIR Common Test Methods

  1. Transmission Experimental Mode (FTIR)

In the FTIR transmission sampling technique experimental mode, incident infrared light passes through the sample and is measured by the FTIR detector to generate a spectrum.

Transmission Experimental Mode ftir
  1. Attenuated Total Reflection Experimental Mode (ATR-FTIR)

In the ATR-FTIR attenuated total reflection sampling technique experimental mode, infrared (IR) light passes through a crystal and is totally reflected at least once at the crystal-sample interface; the reflected light is transmitted to the FTIR detector.

Attenuated Total Reflection Experimental Mode ATR FTIR
  1. Specular Reflection Experimental Mode

Commonly used for FTIR detection of liquids, films and bulk materials.

Specular Reflection Experimental Mode ftir
  1. Diffuse Reflection Experimental Mode

Commonly used for FTIR detection of powder samples.

Diffuse Reflection Experimental Mode ftir
  1. Powerful Database of FTIR:
  • 20 professional spectral libraries with more than 15,000 spectra;
  • Catalyst Library, Chemical Reagent Library, Oil And Additives Library, Polymer Library, Organic Reagent Library, Veterinary Drugs Library, etc.

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.

FTIR

Model: DW-FTIR-530A

Optional Accessory

Application

Picture

DW-FTIR-530A

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.

FTIR Display

Display of FTIR-530A

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.

Why Choose Us for FTIR Spectrophotometer?

Other Spectrophotometers

Order Process of FTIR Spectrophotometer

order process