“…After irradiation, the samples were repacked and measured twice: first after 4-5 days for 45 min to determine As, Br, Dy, K, La, Na, Mo, Sm, U and W and after 20 days for 2 h to determine Ba, Ce, Co, Cr, Cs, Eu, Fe,Hf, Ni, Rb, Sb, Sc, Se, Sr, Ta, Tb, Th, W, Yb, Zn and Zr. The processing of the data and calculation of the elemental concentrations were performed using certified reference materials and flux comparators by means of software developed in FLNP, JINR (Frontasyeva and Pavlov 1999;Dmitriev and Pavlov 2013). Varian, Palo Alto, CA, USA).…”