Factors Affecting the Performance of Bench—Top Raman Spectrometers. Part II: Effect of Sample

N ear-infrared (NIR) Raman spectroscopy is being increasingly used for the identi ® cation of organic and inorganic materials, microspectroscopy, characterization of the chemical and physical properties of polymers, process monitoring, and quanti® cation. In principle, after correction for the instrument response function, the nonresonant Raman spectrum of a given sample should be independent of the laser wavelength. However, for many samples, there are several factors that cause differences between Raman spectra measured with different wavelengths. In the previous paper, we discussed artifacts