The Concept of Complex Formation
In an attempt to explain the nature of polar interactions, Martire et al. (11) developed a theory assuming that such interactions could be explained by the formation of a complex between the solute and the stationary phase with its own equilibrium constant. Matire and Riedl adopted a procedure used by Langer et al. (12) and divided the solute activity coefficient into two components.
where (
) is the specific retention volume of the
solute,
(
)
is the fully corrected solute activity
coefficients,
(
) is the solute bulk vapor
pressure,
(
)
is the stationary phase molecular weight,
(R) is the gas constant,
and (c) is the fraction of the solute that is complexed.
