FT-IR Photothermal Beam Deflection Spectroscopy of Solids Submerged in Liquids

摘要

FT-IR photothermal beam deflection (PBD) spectra were recorded of solids submerged in liquid CC14 and in C2C14. Some PBD effects are described. Submerging the sampling leads to PBD signals 40 times larger than those found with the sample in air, but the signal to noise ratio of FT-IR/PBD spectra is only increased by a factor of ten. Certain aspects of the technique and its utility are discussed. Index Headings: Infrared spectra; Photoacoustics; Photothermal beam deflection; Solid/liquid interface; Solids.; Fourier Transform, Spectroscopy; Infrared spectroscopy; Carbon Tetra Chloride; Tetrachloroethylene; Reprints.