title: Potential methodological errors in the application of equilibrium dialysis to the determination of "free" and "bound" plasma tryptophan.
abstract: The application of equilibrium dialysis to the determination of the "free", i.e. non-albumin bound fraction of human plasma or serum tryptophan has been re-examined. A potentially serious error in the application of this method is outlined and the necessary correction and some precautionary measures are discussed.
mesh_terms: D003956:Dialysis / Q000379:methods; D005069:Evaluation Studies as Topic; D006801:Humans; D014364:Tryptophan / Q000097:blood*
chemical_list: D014364:Tryptophan