Abstract

Raman spectral techniques have not played a dominant role in analytical problem-solving methods. Raman techniques are highly regarded in specialized applications; however, their usefulness in analyzing "real-world" samples is often precluded due to fluorescence interferences. Recent studies using near-infrared excitation have clearly shown the elimination of fluorescent interference. These experiments also demonstrate the viability of Raman spectrometry as a genuinely useful analytical tool for real-world samples. Raman sampling techniques provide acquisition of vibrational spectra by a virtually endless number of different configurations. Such sampling techniques are either commercially available or are custom designed for particular applications. Another desirable feature, particularly for industrial materials, is the ability to examine samples noninvasively and without physical alteration.

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