Spatially Offset Raman Spectroscopy (SORS) and Transmission Raman Spectroscopy (TRS) are methods for analysing bulk turbidly scattering materials such as powders, tablets, suspensions and other chemical mixtures, and provides non-invasive measurements with high selectivity and sensitivity. They can be effectively used for non-invasive probing of the content of pharmaceutical capsules and tablet and provides an analytical technique ideally suited for fast on-line process control monitoring applications in pharmaceutical industry where rapid, chemically specific bulk analysis is required
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