Prevest Research Institute is having a Cary 630 FTIR Instrument having KBr Engine with Spectral range 7000–350 cm-1. The instrument’s transmission interface provides classic infrared sampling for the measurement of solids, liquids or gases. Also, this is equipped with Single Reflection Diamond ATR for use with solids, liquids, gels, pastes. Infrared spectroscopy is one of the most widely used techniques for identification of chemical compounds and materials, including liquids, solid substances and gases, through their ability to characterize absorption of infrared radiation.
FT-IR stands for Fourier Transform Infra Red, the preferred method of infrared spectroscopy. In infrared spectroscopy, IR radiation is passed through a sample. Some of the infrared radiation is absorbed by the sample and some of it is passed through (transmitted). The resulting spectrum represents the molecular absorption and transmission, creating a molecular fingerprint of the sample. Like a fingerprint, no two unique molecular structures produce the same infrared spectrum. This makes infrared spectroscopy useful for several types of analysis.
The application of FTIR technique is essential in that it is used to identity of incoming raw materials, identify and confirm plastics, elastomers, and adhesive materials by comparing spectra with the onboard library. Used to confirm that formulated and finished products comply with defined specifications, track curing of curing and composition of polymers and composites, determine the concentration of UV stabilizers, antioxidants, or filler in plastics, ensure the quality of compounds used in human food, health and cosmetic products, to identify if drug samples are counterfeit or adulterated. FTIR is also much helpful to find degree of conversion of polymer based materials in dentistry by calculation which is based on ratios of area or height of specific peaks in the FTIR-spectrum of the material.