Metrohm 719 S Titrino - Manual (Page 130)

5.2. Connection of electrodes, preparing titration vessel
719 S Titrino
126
Setting up the titration vessel
The titration vessel is set up as shown below. During a titration, it is
important to ensure that the solution in contact with the electrode is
thoroughly mixed. This is achieved by
• efficient stirring. But it should not be too fast, otherwise the stirrer
vortex will suck in air bubbles and CO
2
or O
2
can disturb the titra-
tion.
• placing the buret tip according to the drawing below for maximum
distance between the adding of the titrant and the electrode.
Stirrer
Buret
Electrode
Pay attention on the direction of rotation of the stirrer!