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TOOLS & INSTRUMENTS

# Fourier Transform Infrared Spectroscopy

Attenuated total reflectance (ATR) accessory being used to measure a high strength polymer fiber.  ATR can also be performed using the microscope attachment of the FTIR.

Fourier Transform Infrared (FTIR) Spectroscopy is a spectroscopic technique in which the vibrational modes of the molecules comprising a material of interest (often a polymer) are interrogated using infrared radiation.  The FTIR provides information about the molecular structure of the material.  Infrared spectroscopy is a very commonly used technique which is well described elsewhere.  The instrument in our laboratory is equipped with both a microscope attachment and a bench compartment.  Samples can be analyzed using transmission, reflectance, and attenuated total reflectance.  Scanning across a sample can also be performed in an automated fashion with the equipment available in our laboratory.

## Specifications/Capabilities

Molecular structure, changes in functional groups

ChemistryAnalytical chemistryMolecular characterizationMaterialsCompositesMaterials characterizationComposition and structurePolymers

## Organizations

                          - NIST Headquarters
                            - Laboratory Programs
                              - Material Measurement Laboratory
                                - Materials Measurement Science Division
                                  - Security Technologies Group

## Details

## Contact

                    -  Amanda L. Forster  amanda.forster@nist.gov      (301) 975-5632   
                    -  Aaron M. Forster  aaron.forster@chips.gov      (301) 975-8701   

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