  Spectra of four non-magnetic chemically peculiar late B type stars (HgMn)
stars are analysed to detect periodic spectral line variations (LPVs). A
procedure developed to study LPVs in Slowly Pulsating B stars has been adopted
as pulsational properties of HgMn stars should be expected to be similar. In
the preliminary results discussed here no conclusive evidence for periodic LPVs
was uncovered. A more sensitive re-analysis of the data is under way.
