PM-IRRAS Method for Infrared Spectrometry

1          There are several methods used in the process of infrared spectrometry. They are typically used for analyzing single continuous layers of molecules that are suspended on liquid or reflective substance.

2          Most methods for this process are highly sensitive and very precise in terms of the surface they cover to make necessary measurements in an upright condition. Certain devices used for some methods are comprised of technological angular configuration that enables simple adjustments to different angles and a setup time that is more efficient.
3          The first FT-IR method for infrared spectrometry is the PM-IRRAS or Polarization Modulation-Infrared Reflection-Adsorption Spectroscopy which is highly specific on surfaces and has the ability to detect chemical compositions of films from a surface forming two bodies of common boundary down to single molecular films of thick quality. This kind of technique enables a better detection on measurements from the air water boundary as well as detecting substrates. When the indications of PM-IRRAS position and intensity changes, it can then be utilized to gather molecular absorption and desorption kinetics and behavior, shifting of phase, molecular coating, hydrogen bonds, hydration, and the different reactions of the surface in a thin film.