| Name | Description |
|---|---|
| PureSubstance | Constant source of pure substance |
| ExternalIdealGasSubstance | Ideal gas substance with defined partial pressure |
| ExternalMolality | Constant source of substance molality |
| ExternalConcentration | Constant source of molar concentration |
| ExternalMoleFraction | Constant source of substance mole fraction |
| ExternalElectroChemicalPotential | Constant source of electro-chemical potential |
| SubstanceInflow | Molar pump of substance to system |
| SubstanceOutflow | Molar pump of substance out of system |
| Clearance | Physiological Clearance |
| Degradation | Degradation of the substance |
| Buffer | Source of substance bounded to constant amount of buffer to reach linear dependence between concentration and electrochemical potential |
| SubstanceInflowT | Molar pump of substance at defined temperature to system |