REMOVAL OF OXYGEN IN A CONTINUOUS FLOW-THROUGH ANODIC-STRIPPING VOLTAMMETRIC SYSTEM

The efficiency of oxygen removal with a deaeration chamber (DC) and di rect cell deaeration (DCD) in a continuous flow-through anodic strippi ng voltammetric system is evaluated. The limitations as well as advant ages of each procedure are studied. The DCD method results in higher s ensitivity within the shortest analysis time, DC sensitivity can be im proved by increasing both deaeration time and deposition time. The mai n disadvantage of DC is that it is more time consuming compared to DCD , but the time can be reduced by using smaller volumes.