The Possibility of Extending the Detection Function of an Analytical System to Lower Concentrations

It is shown that the only way to increase the detection capacity of an analytical system is based on the use of the multitude values of the single analytical signal. This can be achieved in two modalities: 1) fixed multitude values (as mean or as sum), and 2) sequential multitude values (as signal sum and as frequencies sum). By using these procedures, the analytical detection can be applied under the classical detection limit at as low concentrations as desired, provided that the multitude of the individual values of the signal be sufficiently high