High Sensitivity Recording Polarograph

Some Investigations on Instrumental Compensation of Nonfaradaic Effects in Voltammetric Techniques.

“…These inconveniences and limitation s imposed by nonfaradaic effects have led to much expenditure of effort in attempts to reduce the magnitude of their contributions to instrument readout. Reduction of the effects of charging current has been accomplished by a variety of compensation techniques essentially involving electronic simulation of the charging current signal and subtraction of the simulated signal from the cell current (SO, [33][34][35] (the simulation methods). Compensation also has been tried by subtraction of current signals obtained simultaneously from sample and reference solutions (14,32,52,59,72) (the direct method).…”

Effect of Gamma Radiation on Aqueous Solutions of (Ethylenedinitrilo)tetraacetic Acid.

“…Model Q-1160 (6). For all the amperometric titrations, this instrument ivas used both as a source of constant potential and as a current recorder.…”

Capillary Behavior in High Sensitivity Polarography

“…A curve follower such as the ORNL Model Q-983 will exactly compensate for a reproducible nonlinear background (10). This compensation technique may be used to make polarograms at concentrations of about 10 ~*M. The technique demands, however, that the background be strictly reproducible from polarogram to polarogram.…”