You're reading an old version of this documentation. For the latest released version, please have a look at v5.0.1.

Steric Mass Action

Group /input/model/unit_XXX/adsorption – ADSORPTION_MODEL = STERIC_MASS_ACTION

IS_KINETIC

Selects kinetic or quasi-stationary adsorption mode: 1 = kinetic, 0 = quasi-stationary. If a single value is given, the mode is set for all bound states. Otherwise, the adsorption mode is set for each bound state separately.

Type: int

Range: {0,1}

Length: 1/NTOTALBND

SMA_KA

Adsorption rate constants

Unit: \(m_{MP}^3~m_{SP}^{-3}~s^{-1}\)

Type: double

Range: \(\ge 0\)

Length: NCOMP

SMA_KD

Desorption rate constants

Unit: \(s^{-1}\)

Type: double

Range: \(\ge 0\)

Length: NCOMP

SMA_NU

Characteristic charges of the protein; The number of sites \(\nu\) that the protein interacts with on the resin surface

Type: double

Range: \(\ge 0\)

Length: NCOMP

SMA_SIGMA

Steric factors of the protein; The number of sites \(\sigma\) on the surface that are shielded by the protein and prevented from exchange with the salt counterions in solution

Type: double

Range: \(\ge 0\)

Length: NCOMP

SMA_LAMBDA

Stationary phase capacity (monovalent salt counterions); The total number of binding sites available on the resin surface

Unit: \(mol~m_{SP}^{-3}\)

Type: double

Range: \(\ge 0\)

Length: 1

SMA_REFC0

Reference liquid phase concentration (optional, defaults to \(1.0\))

Unit: \(mol~m_{MP}^{-3}\)

Type: double

Range: \(\gt 0\)

Length: 1

SMA_REFQ

Reference solid phase concentration (optional, defaults to \(1.0\))

Unit: \(mol~m_{SP}^{-3}\)

Type: double

Range: \(\gt 0\)

Length: 1