Amount analytical approaches, fluorescence spectroscopy is
well known for its promising potential as an analytical tool for
in-vivo medical analysis. In addition to its high sensibility and
selectivity, fluorescence spectroscopy is a non-invasive method
that can be performed in whole blood [9] and through the skin
[10]. In addition, actual developments in electronic, in light-emitting
devices, and solid-state detectors can lead to simple, low-cost
and miniaturized analytical devices that could be used in an automatic
and continuously way or used by the patient himself on an
hourly schedule.