5.2. Raman Chemical Imaging
Raman Chemical Imaging has been applied to many
diverse fields, including polymer classification [46], dental
sample characterisation [47], process monitoring of semiconductors
[48] and detection of filtered waterborne bacteria
[49]. A large number of patents for Raman Imaging
applications exist, including one describing the application
of Raman imaging microscopy for the evaluation of drug
action within living cells [50]. In most Raman Imaging
experiments, a microscope is attached to the imaging system
to enable molecular characterisation. Some recently
published applications of Raman spectroscopy in pharmaceutical
analysis, summarised in Table 3, include minor
component detection, detection of process related effects,
particle size estimation and tablet characterisation. These
applications are discussed in more detail in the following
section