In the document, a method for the determination of metallic impurities in U or Pu containing solutions (or samples which can be dissolved) is described. Inductive heating of a carrier gas such as argon in a coil to very high temperatures produces a plasma, in which the sample becomes ionized and excited. Wavelength and intensity of the emitted optical radiation is analyzed. From the intensity of such element specific emission lines, the concentration of impurity elements can be determined.#,,#
DIN 25708:1995 history
1995DIN 25708:1995 Determination of metallic impurities in nuclear fuels by optical emission spectrometry with inductively coupled plasma excitation