Determination of trace amounts of some elements in armco steel by the neutron activation method

Ferrous metallurgy

“…Nuclear Methods. Again, a number of studies have shown the usefulness of neutron activation analysis in ore, high-purity iron, and steel (117, 135,136,146,262,326).…”

“…Aside from the use of neutron activation methods for the determination of gallium (117, 135,136,262,326) in highpurity iron, it has also been separated by either solvent extraction (123) or column chromatography (474) and determined by flame emission spectrometry.…”

“…Two methods have been described for the direct determination of samarium and neodymium (322) and cerium and lanthanum (91) in steel. To determine lanthanum (172,263) and scandium and lanthanum (262) in steel at concentrations in the parts-per-billion range, chemical separations were also used. Rare earths were also determined in ores by neutron activation methods (146,221).…”

“…Neutron activation has been applied for the determination of scandium in high-purity iron requiring ion-exchange separations (117,136) or radiochemical separations involving extraction or precipitation procedures (262).…”