Table 3: Binary systems equilibrium isotherm models and fitting parameters.

ModelPrimary amino acid—interfering amino acid (mg g−1) RMS (%)

Langmuir
 (a) Phe removalPhe-Tyr78.468.33.1940.996
 (b) Tyr removalTyr-Phe6.780.10.5050.999
Freundlich
 (c) Phe removalPhe-Tyr79.177.73.4880.995
 (d) Tyr removalTyr-Phe6.350.20.3590.999

Subscripts 1 and 2 refer to the amino acid being removed (1) and the interferent (2).