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Uses of Infrared Spectroscopy

Infrared spectroscopy is defined as a method for the identification of substances based on their absorption of infrared wavelengths. It is a study of how the molecules of substances can absorb infrared radiation and transform it into heat. Infrared spectroscopy utilizes a machine that applies infrared rays to a substance. The job of the machine, called an infrared spectrometer, is to record the number of wavelengths absorbed by a substance. Infrared spectroscopy has many benefits in the field of science and technology.

  1. Forensic Analysis and Crime Investigation

    • Since infrared spectroscopy is useful for the identification and confirmation of the identity of materials and substances, the method is beneficial to the field of forensic analysis. With the aid of integrated computer databases and machines capable of performing infrared spectroscopy, almost any substance or material can be identified. Computer databases have records of known infrared absorbance graphs. Infrared spectroscopy plays an important in crime investigation because it can help authorities to solve crimes and locate criminal offenders. The evidence gathered from the scene of the crime can be examined closely with the use this method. The results can provide clues to a criminal’s whereabouts. For example, infrared spectroscopy can be used to find a car model by simply subjecting a paint chip to infrared spectroscopy.

    Chemical Analysis: Testing Pill Quality

    • According to "Medical News Today," scientists at the University of Maryland have been successful in using the method of near-infrared spectroscopy (NIR) to make a prediction regarding quick dissolution of pills inside the body. The success of the experiment can help drug manufacturers in checking the quality of pills to benefit consumers in the health industry. Pills can be tested for consistencies because any imbalance in pill ingredients can prove to be lethal. The Food and Drug Association (FDA) can also use the method of infrared spectroscopy for checking and identifying materials in the manufacture of medicines. The FDA regulates drug companies and protects consumers from potential health disasters.

    Chemistry Applications

    • Using infrared spectroscopy, it is possible to measure the degree of polymerization in chemical compounds. Polymerization happens when monomer molecules undergo chemical reaction to form polymer chains. Infrared spectroscopy can measure the changes in the nature and quantity of molecular bonds. Portable instruments that can measure infrared spectroscopy are used in field trials. This method is important for researchers in identifying more uses of different substances to improve the lives of modern society. Medical breakthroughs are not far behind. The analysis of molecular compounds can lead to the discovery of new chemical compounds that can produce useful products.

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