Abstract: A method of reducing peak width in flow-through analytical instrumentation measurements, comprising introducing a sample into an analytical instrument; recording the time required for a plurality of individual analytes within the sample to travel a known distance between a first point and a second point within the analytical instrument to produce a plurality of travel times; recording the time required for a plurality of individual analytes within a sample to travel a known distance between a first point and a second point to produce a plurality of travel times; dividing the travel times into a plurality of groups comprising a fixed number of travel times; assigning a ranking to the travel times within a group; selecting from each group at least one travel time to produce a set of selected travel times; and producing from the set of selected travel times an output signal in the form of a peak.