Application of multi-step excitation schemes for detection of actinides and lanthanides in solutions by laser spectroscopy

Abstract

Data on chemiluminescence of chemiluminogen (luminol, 5-amino-1,2,3,4-tetrahydro-1,4-phthalazindione) in aqueous solutions containing Sm(III), U(IV), and Pu(IV) are presented. Chemiluminescence was induced by multiquantum excitation of lanthanide and actinide ions in the range of 4f- and 5f-electron transitions by the schemes two step–one color and two step–two color with the use of dye lasers. A multi-step scheme of chemiluminescence excitation provides highly sensitive and highly selective procedure of detection of lanthanides and actinides in solutions.