Patent 7507583 was granted and assigned to Savannah River Nuclear Solutions on March, 2009 by the United States Patent and Trademark Office.
A method of analyzing relatively large soil samples for actinides by employing a separation process that includes cerium fluoride precipitation for removing the soil matrix and precipitates plutonium, americium, and curium with cerium and hydrofluoric acid followed by separating these actinides using chromatography cartridges.