Abstract: Elemental abundance analyses with DAO spectrograms – XXVIII. The hot metallic-lined stars theta Leonis (A2 V) and omicron Pegasi (A1 IV).

Elemental abundances analyses are performed for the hot metallic-lined stars theta Leonis and o Pegasi consistent with previous studies of this series using high signal-to-noise spectrograms obtained with Reticon and CCD detectors. Comparison of the results with previous studies which used co-added photographic plates show both the general consistency of the derived elemental abundance analyses and the improvements due to linear detectors and higher signal-to-noise data. In general the new abundances from two species of the same element show better agreement.