An external beam irradiation facility for direct trace elemental analysis of liquid samples has bean developed at the Variable Energy Cyclotron Centre, Calcutta. The system has been standardized primarily for transition metals, in liquid samples. The system has been found to behave lineraly over a wide range of concentrations. The minimum detection limits (MDL ) were found in the order of 15 -160 ppm in presence of interfering elements and 0.6 -10 ppm in the absence of interfering elements The results were validated by analysing NIST standards
