Sample best-fitting synthetic spectra for HD 72106A (left-hand panels) and HD 72106B (right-hand panels) in two independently fit spectral windows. The observations of the individual stellar components from 2007 March 5 are used for both stars. Major contributors to each line have been labelled, in order of importance. The smooth solid line is the best-fitting spectrum in this region, the dashed line is a spectrum computed with solar chemical abundances. Dots represent the observations.