On the presumed inductive behaviour of electrolyte solutes in low frequency conductance - Part II: Proposal of an alternate technique for AC conductance measurements

In Part I, the deficiency of the conductance set-up mentioned in Bardos et al. [1] was pointed out: the problem, so as it appears, was caused by stray/parasitic capacitance of the measuring cell. The set-up hereafter proposed avoids such problems and allows admittance measurements in the range from DC to 5 MHz, with digital accuracy. Measurements with physiologic liquid as test electrolyte prove the absence of any inductive reactance in LF/RF conductance, hereby confirming the classic Debye-Falkenhagen theory and more recent studies conducted on physical models.

Graphical abstractThe proposed set-up, allowing admittance magnitude and phase measurements in the range from DC to 5 MHz, allows to prove the absence of inductive reactance in the LF conductance of 1:1 electrolyte solutes.Download full-size image