The principle of WDXRF spectromety is the use of different
analyzer crystals to diffract and separate the different characteristic
wavelengths of the elements present in the sample. For that reason, in
WDXRF measurements, a multi-spectrumwas obtained resulting from
the use of different analyzing crystals, excitation conditions, etc. (see
Table 2). The obtained multispectra were split into the different
individual spectra and were converted to energies by inversion of the
channels to be treated using the means of the Axil X-ray Analysis
software code (inside the WinQXAS software package) to perform
spectral deconvolution and fitting and to evaluate element net peak
areas from the spectra.