Metrohm 785 DMP Titrino - Manual (Page 163)

5.2. Connection of electrodes, preparing titration vessel
785 DMP Titrino
160
Setting up the titration vessel
The titration vessel is set up as shown in Fig. 5-6. 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.
• positioning the burette tip as centrally as possible, above the stir-
ring bar.