Fourier Transform Infrared Spectroscopy (FTIR)

Instrument Details

Make

Perkin Elmer, Singapore

Model

Spectrum-2

Specification

1. Wavelength Range	: 8300 to 350 cm^-1
2. Spectral Resolution	: 0.5 cm^-1
3. Wavelength Accuracy	: 0.1 cm^-1 to 3000 cm^-1
4. Signal to noise ratio	: 50000:1 peak to peak 4 cm^-1 resolution for a one minute measurement.
5. Wavelength Precision	: Better than 0.01 cm^-1 at 3000 cm^-1

Working Principles

Fourier Transform Infrared Spectroscopy relies on the fact that the most molecules absorb light in the infra-red region of the electromagnetic spectrum. This absorption corresponds specifically to the bonds present in the molecule. The frequency range are measured as wave numbers typically over the range 4000 – 600 cm^-1. It is a technique used to obtain an infrared spectrum of absorption or emission of a solid, liquid or gas. This 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.

Applications

Fourier Transform infrared spectroscopy (FTIR spectroscopy) covers a wide range of chemical applications, especially for polymers and organic compounds for examples paints, adhesives, resins, polymers, coatings and drugs. It is a technique used to obtain an infrared spectrum of absorption or emission of a solid, liquid or gas. An FTIR spectrometer simultaneously collects high-spectral-resolution data over a wide spectral range.

User Instructions

Keep the instrument dry. Avoid spilling liquid onto the instrument. Clean all external spills immediately.
Do not use a flammable gas to purge the instrument. The instrument contains a hot source, and a fire or explosion will result.
Only plug the instrument power supply into a socket power outlet that is provided with a protective earth connection.

Contact Details

CSIR-Central Road Research Institute,
Delhi-Mathura Road, New Delhi-110025
Phone: 011-26832173, 26832325
Website: http://www.crridom.gov.in
Email: director.crri@nic.in