Radiochemical Neutron Activation Trace Element Analysis Of Two USGS Ultrabasic Rock Reference Samples: Peridotite PCC‐I and Dunite DTS‐I

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Abstract
Most trace elements in ultrabasic rock samples are very often present in concentration levels of less than 10 ppm. In these cases, neutron activation analysis (NAA) is very useful. We have applied two different NAA procedures for the determination of 19 trace elements and CaO in two ultrabasic rock standards. Our values are compared with the preferred and published values, although the latter are not very abundant.