Fourier transform infrared spectroscopy of solids and liquids using photoacoustic detection is reported here. The advantages and disadvantages of photoacoustic detection are discussed, and comparisons of sample spectra obtained by different techniques, including photoacoustic detection, are presented and compared. Photoacoustic Fourier transform infrared spectroscopy is a promising spectroscopic method for IR analysis in cases where sample preparation is difficult.
D. Warren Vidrine, "Photoacoustic Fourier Transform Infrared Spectroscopy of Solid Samples," Appl. Spectrosc. 34, 314-319 (1980)