Paul-émile Lecoq De Boisbaudran. De boisbaudran was a pioneer in spectroscopic chemistry, by which new elements can be identified in compounds when. Paris, france, 28 may 1912) chemistry.
In 1879, french chemist paul émile lecoq de boisbaudran discovered the element spectroscopically by its sharp absorption lines in samarskite. Boisbauran, paul émile lecoq de. Paul emile lecoq de boisbaudran.