for the ALICE collaboration

The ALICE experiment at the LHC is taking data in proton-proton

collisions at the center-of-mass energy of 7 TeV starting from March

1. Heavy-ion collisions are expected to be delivered during November 2010.

Among other particles charmed and beauty mesons can be reconstructed

by the ALICE apparatus. Open heavy flavour mesons provide a powerful

tool to study hot quark matter produced in high energy heavy-ion

collisions because their spectra are expected to be affected by the

energy loss in the medium. Measuring such particles is important also

in proton-proton collisions. In this case they provide a necessary

reference for heavy-ion collisions and allow to test pQCD predictions in a new energy domain.

Different ways to reconstruct D and B mesons will be described

together with adopted selection and analysis techniques. D mesons in

the central rapidity region are reconstructed via 2,3, and 4-prongs

hadronic decays and via single electrons. In the forward region single

muons are used to reconstruct D and B mesons decays.

Latest results for D mesons, single electrons and single muons will be

presented.