Abstract
An analysis of the abundances of the normal late-B star HD 196426 and of the HgMn CP star HD 144206 is presented using ATLAS9 model atmospheres and observational material taken with the SARG spectrograph attached to the Telescopio Nazionale Galileo, Roque de los Muchachos, La Palma, Spain. The isotopic and hyperfine structure of several lines of MnII, GaII, PtII, HgI and HgII in HD 144206 is investigated and also, the possible existence of weak emission lines from CrII and TiII in the red part of the spectrum.
