| http://www.w3.org/ns/prov#value | - n 7, 1977Stiftelsen Isotoptekniska LaboratorietMethod and apparatus for measuring the concentration of a component, for instance iron, in a materialUS4251726 *Feb 26, 1979Feb 17, 1981Alvarez Luis WDeuterium tagged articles such as explosives and method for detection thereofUS4268754 *Apr 9, 1979May 19, 1981Srapeniants Rigo ARadioactivation method for simultaneous determination of nitrogen, phospho
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