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6. Challenges
The potential applications of Chemical Imaging for
pharmaceutical process monitoring and quality analysis
have been highlighted in this article. Nevertheless, it is
worthwhile to note that Chemical Imaging is not an endall
solution for pharmaceutical analysis. For many applications,
single point spectroscopic methods are sufficient (e.g.
for bulk sample identification or quantitative determination
of the average composition of a substance). On the
other hand, there remain key areas in pharmaceutical process
monitoring for which CI is quite possibly the best solution,
i.e. measuring spatial heterogeneity, component
distribution, coating thickness, particle size, contaminant
detection and high throughput analysis. However, the technology
is not without its limitations; some challenges face
the routine implementation of CI in the pharmaceutical
industry and are explored below.
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