We present examples of the application of the X-ray fluorescence (XRF) to the study of the artistic and cultural patrimony
of the Comunidad Valenciana in the following areas: a) Valencian paintings of the XV and XVI centuries; b) silver ornaments
coming from Iberian towns (s. III b.C.); c) ink and paper samples in manuscripts and engravings of the XVII and XIX centuries.
The non destructive analyses are carried out “in situ” using a XRF system that consists of a tube of X-rays of 50 kV and 1
mA, and a detector of Si(Li) with an energy resolution 140 eV (FWHM at 5.9 keV).