FSM Series Fourier-Transform Infrared Spectrometers

FSM 2201/2202, FSM 2203, FSM 2211

Main Page. Spectrophotometers
→
FSM Series Fourier-Transform Infrared Spectrometers. Description

IR Fourier spectrometer FSM is a convenient and reliable tool for solving research, analytical and industrial tasks.

Universal laboratory IR Fourier spectrometers FSM 2201 and FSM 2202 are intended for routine measurements and scientific studies in the middle infrared region of the spectrum.

FSM 2201/2202

FSM 2201/2202 spectrometers are based on a Michelson-type interferometer, with self-compensation, which does not require dynamic alignment.

Spectrometers are used for quantitative analysis and quality control of products in various industries, for environmental monitoring, forensic and other types of expert examinations.

The spectrometers of this model differ from the previous one by an increased signal-to-noise ratio and an increased cuvette section.

FSM 2203

The laboratory IR Fourier spectrometer FSM 2203 is designed to conduct the studies that require high spectral resolution, including for the qualitative and quantitative analysis of gases..

The device operates in the middle IR region of the spectrum, it has an optical port for input of radiation from an external source, and is equipped with an inert gas purge system.

FSM 2211

FSM 2211 is designed for quantitative and qualitative studies in the near infrared range. It has all the advantages of the spectral NIR-analysis method: highly informative data obtained, high rate and accuracy of measurements, it does not require preliminary sample preparation and special training of personnel.

FSM 2211 spectrometers are based on a Michelson-type interferometer, with self-compensation, which does not require dynamic alignment.

The creation of affordable industrial equipment and the combination of NIR spectroscopy method with a chemometric system for results processing in a short time has made this method extremely popular in areas such as the food products, drugs, perfumes and cosmetics. The simplicity, fast execution of analysis and the objectivity of the results provide the leading position of this method in the incoming quality control of raw materials, in the production process to control its critical points and finished products. The method is recommended, in particular, for revelation of counterfeit drugs.

This is done using a calibration model, which is a relationship between the absorption (transmittance) coefficient and the component concentration (sample property). The calibration model is calculated in advance using the results of the calibration, which consists in registration of the spectra of a batch of samples with known (established by standard chemical methods) concentrations of components or other known properties.

The location of the bands in the infrared absorption spectrum includes the information about the qualitative composition of the sample, while the intensity of the bands allows its quantitative analysis, i.e. determine the concentration (or other property) of the respective component.

Primary advantages of Fourier-transform IR spectrometers

High sensitivity
FSM spectrometers significantly surpass dispersive spectrometers in sensitivity, which allows detection of extremely low concentrations and trace amounts of materials.
Rapidity
Spectrum obtaining time is considerably reduced, which provides a high-speed measuring capability, complete product inspection capability, and a capability of real-time controlling of fabrication process parameters.
Automation of measurements. Easy of operation.
Obtaining and registering the results of the measurements is completely automatic. A high effectiveness and reliability of data processing is ensured.
The spectrometer requires no tuning, has the built-in wavelength standard; its testing procedure is automated.
Modular design.
The spectrometer can be adapted to special applications: gas analysis, fuel and oil analysis, control of semiconductor silicon.
Software.
The basic software operates under Windows 9х/ХР, and provides spectra measurement, spectrometer testing, and work with the spectra data base. There is a large set of operations intended for spectra processing, analysis and display.
Supplementary equipment
For FSM spectrometers there is a large set of optic accessories and devices for IR spectroscopy: demountable and sealed cells for liquids, gas cells (including multi-path cells), accessories for specular and diffuse reflectance measurements, MNPVO accessories, presses and dies for KBr pellet making, IR microscope.

Applications of Fourier-transform IR spectrometry

1
Chemistry and petrochemistry
Qualitative and quantitative analysis of raw materials and intermediate and finished products of synthesizing. Fuel analysis: esters, alcohols, aromatic hydrocarbons, octane number. Fractional and structural-group analysis of oil products.
2
Polymer chemistry
Copolymer composition. Synthetic rubber: composition, structural characteristics. Analysis of modifying agents: flexibilizers, anti-oxidants.
3
Pharmaceuticals industry
Determination of substance validity by IR-standards, quality control of dosage forms and basic materials.
4
Gasometry
Analysis of multicomponent gas mixtures. Quality control of gas industry products, analysis of natural gas composition.
5
Electronic industry
Quality control of semiconductor silicon, and semiconductor structure parameters. Analysis of process gas composition.
6
Food-manufacturing and fragrance industry
Rapid test of basic materials and final products: protein, cellulose, fatty substance and moisture content.
7
Environmental control
Control of oil-products in water and soil. Control of open air, workplace air, and emissions of industrial enterprises.
8
Criminalistics
Identification of tracer amounts and microsamples of natural substances and synthetic materials.