A low volume flow cell for improved kinetics analysis is suited for the SPRimagerII label-free array platform. It is interchangeable with the standard flow cell so both current and future users of the label-free array platform can access these capabilities. Moreover, the flow cell enables more rapid exchange of analytes. A micro-channel flows analyte rapidly over every spot of the 16-spot array so researchers can obtain kinetic information for specific molecular interactions. At the same time, all the benefits of the standard flow cell are retained, including a greater volume for equilibrium analysis and compatibility with custom arrays.