Introduction
Current trends in Green Analytical Chemistry are the development
of portable instrumentation as an alternative to move the
samples to the laboratory and thus, nowadays there are several
available instruments to do it as, infrared instruments, energy
dispersion X-ray fluorescence systems, portable gas chromatograph
[1] or capillary electrophoresis [2]. A portable instrument
can provide instant in-field results without the need to wait for
the transport of collected samples from the forest to the laboratory.
These past years, there is the development of portable sample
preparation apparatus, which can help to do the in-field extraction,
sample preparation, analysis and data evaluation. In parallel,
a portable instrument is defined as “easily” movable, convenient
for carrying, and capable of being transferred or adapted in altered
circumstances [3].