Some Novel Applications of an Infrared Microscope

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Abstract
In recent years there has been considerable growth in the use of infrared microscopy as an analytical tool. These applications have focused on the spatial resolving power of the microscope for analysis of small samples or small contaminants or inhomogeneities within a material. The infrared microscope can also serve as a more versatile sampling accessory. Depending on the nature of the material under investigation, diffuse reflectance or true specular reflectance spectra can be recorded from bulk polymeric materials. In either case, useful chemical or functional group information can be obtained in a noninvasive and nondestructive manner. As a further example of the versatility of the infrared microscope, some initial results are presented illustrating its potential use in the study of monomolecular films on aqueous substrates.