End-Point Titration' And 'Dead-Stop Titration' Titration Parameters - Xylem SI Analytics TitroLine 6000 Manual De Instrucciones

145
Chapter 4 Method Parameters
4.6.5

'End-point titration' and 'dead-stop titration' titration parameters

When working with end-point titration, there are some differences in context with linear and dynamic equivalence-
point titration.
As was already described in Chapter 4.5.2.3, end-point titration, in a first stage, proceeds by continuously dosing
until a specific Delta value ("Delta end-point") at a distance from the set end value is reached. The dosing speed
of this first stage can be set in terms of % on the "Dosing parameters" menu. Subsequently, titration continues in
a drift-controlled manner or with a fixed holding time with a linear step width between the Delta value and the end
value. As soon as the end value has been reached, a defined waiting time is observed. If the end value is fallen
short of, one or more than one additional titration step(s) is/are added until the end value has become stable. The
waiting time at the end is referred to as end-point delay.
In the case of an end-point titration for two endpoints, it is possible to set both of the endpoints with different
Delta values and end-point delays:
Fig. 100 b
Fig. 100 c
Dead-Stop Titration and Polarisation voltage
Polarisation voltage in mV can only be set for dead stop titration.
Fig. 100 d