  In this paper we perform the analysis of spectral properties of the
linearized system around constant states and dispersive shock for a 1-D
compressible Euler system with dissipation--dispersion terms. The dispersive
term is originated by the quantum effects described through the Bohm potential,
as customary in Quantum Hydrodynamic models. The analysis performed in this
paper includes the computation of the linearized operator and the spectral
stability through the Evans function method.
