Infrared Spectrometry is a powerful technique for the analysis of many types of solid samples. Diffuse Reflectance and Photoacoustic infrared sampling accessories can be used to analyse solid samples with little or no sample preparation. A comparison is made between these complementary techniques to show how they can both be used in the modern laboratory. The relative merits of each technique will be discussed and examples of the uses of the two techniques given. Particular attention will be given to the analysis of foodstuffs.
"Diffuse Reflectance On Photoacoustic Spectrometry?", Proc. SPIE 1145, 7th Intl Conf on Fourier Transform Spectroscopy, (1 December 1989); doi: 10.1117/12.969640; https://doi.org/10.1117/12.969640