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The upgraded titrator adopts the principle of potentiometric titration to meet experimental needs:
The automatic potentiometric titrator can perform potentiometric titration, including acid-base titration and redox titration. Precipitation titration, complexometric titration and non-aqueous titration as well as constant pH measurement can also be performed. Optionally, titration analysis methods such as photometric titration, polarization titration, volumetric Karl Fischer titration and surfactant titration can be performed.
When the automatic titrator is used online with the automatic multi-sample converter, it can not only efficiently realize the automatic measurement of a large number of samples, but also improve the repeatability and reliability of the analysis and the operation are easy and save time and effort. Applicable to quality control, Inspection, analysis, research, development and other aspects.
Principle
Titrate the reagent solution (standard solution) of known exact concentration into the predicted substance solution from the burette until the reagent is added Content of the predicted substance is determined from the concentration and volume consumed until the predicted substance is quantitatively reflected stoichiometrically.
Potentiometric titration
Potentiometric titration: A method for determining the end point of the titration by measuring the change in potential during the titration process. There are also color changes to determine the endpoint, such as
HOW IT WORKS
A method of determining an endpoint.
The potentiometric titration method shows the end point of the titration by the sudden jump of the electrode potinitially on.
Before and after the titration reaches the end point, the concentration of the ion to be measured in the droplet often changes continuously by n orders of magnitude, resulting in a sudden jump in potential The content of the measured component goes through consumption of the titrant. to calculate.
In acid-base titration, the indicator electrode is used to show the change in hydrogen ion concentration in the solution into a change in potential to indicate the endpoint of the titration.
