  We compared the results of the Madden-Glandt (MG) integral equation
approximation for partly-quenched systems with the commonly accepted formalism
of Given and Stell (GS). The system studied was a +1:-1 restricted primitive
model (RPM) electrolyte confined in a quenched +1:-1 RPM matrix. A
renormalization scheme was proposed for a set of MG replica Ornstein-Zernike
equations. Long-ranged direct and total correlation functions, describing the
interactions between the annealed electrolyte species within the same replicas
and between the annealed and matrix particles, appeared to be the same for MG
and GS approach. Both versions of the theory give very similar results for the
structure and thermodynamics of an annealed subsystem. Differences between
excess internal energy, excess chemical potential, and isothermal
compressibility become pronounced only at high concentrations of matrix
particles.
