  The high resolution and high $S/N$ HARPS and STIS spectra of the A0Vm star
HD72660 have been synthesised using model atmospheres and the line synthesis
code Synspec49 in order to derive the abundances of several key chemical
elements. In particular we have derived abundances of elements which have their
strongest lines in the UV like Ru, Yb, Au, Pb and Bi. We find overabundances of
heavy elements in particular strong overabundances of Pt, Pb and Bi which are
probably the signature of radiative diffusion in this star.
