Changes

==Introduction==

==Introduction==

*Fluid-phase (''in solution'')

*Fluid-phase (''in solution'')

**Main advantage is that the behaviour of molecules in solution is easier to predict

**Main advantage is that the behaviour of molecules in solution is easier to predict

*Solid-phase (surface of protein-binding material, e.g. plastic)

*Solid-phase (''surface of protein-binding material, e.g. plastic'')

**Easier to perform and more sensitive

**Easier to perform and more sensitive