Radiometer Analytical TitraLab 870, Reference Manual

Page: 82 / 286

Titra Lab ® TitraLab 870 Reference Manual
Page 82
Continuous IP
method For this type of method, the titration is carried out using continuous
addition of titrant.
The titrant addition speed is regulated between two user selectable
limits (Min. speed and Max. speed). The addition speed decreases
when the slope of the E or pH = f(Volume) titration curve increases
and vice versa. This prevents overshooting the equivalent point.
Figure 15: Continuous IP - Titrant addition speed
Using a Continuous IP method, higher the slope of the titration curve
is, higher the number of measurements saved will be. A great majority
of points are saved close to the inflection point. This allows an accu-
rate determination of the equivalent point.
Figure 16: Continuous IP - Number of points saved
The Continuous IP method can be stopped after a given number (1 to
8) of equivalent points has been detected.
Speed
Volume
V max
V min
E or pH
E or pH