Titrator offers solutions to evaluations in the enzyme world and is suited equally well to demanding control tasks in kinetic investigations in the synthesis laboratory and pilot plant
In recent years, the pH stat method has been employed by many scientists in organic synthesis laboratories for a wide range of applications especially in the field of enzymology.
Most enzymatic determinations (eg Lipase, Trypsin) of FIP commission (Federation Internationale Pharmaceutique) employed in pharmaceutical, biological and medicine analysis are protected as separate methods in the non-volatile memory of the 718 Stat Titrino from Metrohm.
The compact 718 Stat Titrino offers not only solutions to evaluations in the enzyme world but also it is suited equally well to demanding control tasks in kinetic investigations in the synthesis laboratory and pilot plant. Whether pH or redox values have to be set or held, the 718 is the instrument of choice.
For every determination 500 data groups comprising of volume, time and measured value are stored and processed to a typical pH stat curve which can be viewed either on the attached printer of PC.
The actual evaluation is performed in the 718 where the use of nine windows allow the determination of consumption per unit time between any two points on the curve. With the sensitive pH stat applications, exothermic reactions are often unavoidable.
If the temperature of the reaction increases too rapidly, the Pt100 temperature sensor records this and the 718 halts reagent addition until the temperature is back within the specified limits.
Dosimat, the dispensing part of the 718, allows complex dispensing tasks involving sensitive chemical to be carried out also.
If one of the set parameters reaches a critical value, the addition of reactant can be shut off, held or interrupted.
Should such an event occur during the night, the result printout alerts the operator.
A new feature of the 718 is the DOC mode which allows measured value ramps to be monitored. If one wishes to increase the pH value linearly over a set period of time then this can be achieved by this mode.
Finally the TIP mode allows up to nine user methods, I/O commands or wait times to be linked in a single method.
