Abstract
The semi-empirical thermodynamic model for the binding of metal ions to an emulsion (intralipid 20%) reported previously (Hall et al., 1991 ; Gaskin et al., 1993) is incorporated into a thermodynamic computer model. This permits the zeta potential and emulsion stability together with precipitate formation to be estimated for any intravenous nutrition regimen. A regimen frequently used in the intravenous nutrition of patients is considered in this modeling study. The effect of solution pH and calcium on the zeta potential of the emulsion is predicted. Calcium and magnesium are the only metal cations which are predicted to be of importance when considering stability of this emulsion.
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