Instrumental neutron activation determination of 23 elements in 8 new USGS standard rocks

The trace elements Ce, Co, Cr, Cs, Dy, Eu, Gd, Hf, La, Nd, Ni, Rb, Sb, Sc, Sm, Ta, Tb, Th, Tm, U, V, Yb and Zr have been determined by instrumental neutron activation analysis and U by delayed neutron counting in the USGS standard rock samples STM‐1, RGM‐1, QLO‐1, SDC‐1, BHVO‐1, SCo‐1, SGR‐1 and MAG‐1. The results are compared with those found in the literature.