V. Cojocaru et S. Spiridon, AN X-RAY-FLUORESCENCE METHOD FOR GOLD DETERMINATION IN ORE SAMPLES, Journal of radioanalytical and nuclear chemistry, 170(1), 1993, pp. 259-264
A new method for gold determination in ore is presented. By the method
called PREFIX (preconcentration and X-ray fluorescence), it is possib
le to detect trace concentrations of gold down to the level of 0.2 mug
/g, without any device.