Neutron Resonance Capture Analysis (NRCA). NRCA is a valid and effective experimental tool for the elemental analysis of objects (e.g. the metallic ones), especially those of archaeological interest. NRCA measurements on a standard Cu/Sb sample also with gold contamination (50 ppm in weight) were performed on INES, using a YAP scintillator crystal coupled to a silicon photomultiplier readout. The results obtained showed that NRCA on INES is feasible and reliable, that isotopic recognition is obtainable with a very good signal to background ratio. By these measurements was also possible to provide a lower limit in the sensitivity of the instrument to elements in traces within metallic objects. To be used in the user program of the instrument the YAP-SiPM device must be calibrated and adjusted. We propose claibration and adjustment measurements on INES with the definitive detector.