The Claisse-Quintin and Lachance-Claisse alpha correction algorithms and their modifications. A critical examination

A slow progress has led us from a reduced formulation (Claisse—Quintin) to a perfected one combining: (1) an advanced knowledge (Tertian and co‐workers, Lachance) of the properties of binary influence coefficients; and (2) Tertian's equation for the resultant third element effect in any multi‐element system. The new algorithm is accurate and compares easily with typical fundamental parameter approaches (Criss and co‐workers) or fundamental coefficient approaches (Broll and Tertian, Rousseau). It suffers from the same reservations as regards possible deviations between theoretical assumptions and experimental reality. A refined experimental study of suitable binary standards should help to reduce these uncertainties.