Neutron-activation analysis of vanadium in oils with californium-252

Results are given which have been obtained by the application of relatively small²⁵²Cf sources for the neutron-activation analysis of vanadium in oils. It could be shown that by optimization the geometrical conditions for activation and counting with a 24 μg²⁵²Cf source detection limits down to the order of 1 ppm vanadium are attainable; the absolute error, e.g., at 1.3 ppm is 0.32 ppm.