If the concentrations of dissolved substances such as acids, bases, and ions in the electroplating baths become too low, they must be re-added accordingly to maintain the solutions concentration.
Although automated titrators independently add titrant, detect the end point, and calculate results, there are still a lot of manual steps involved in the process. The titration process can be fully automated using a sampling valve that automatically takes an exact amount of sample from the electroplating bath.
In this application note, the concentration of sodium hydroxide in an electroplating sample is determined in a fully automated titration process. The liquid is directly sampled from the electroplating bath into the titration beaker using the TV6 sampling valve. The measurement of sodium hydroxide merely serves as an example. It is possible to apply the same procedure to different type of titrations too (e.g. chloride determination).
By downloading this application package, you will receive a PDF of the application note as well as the required data for the LabX™ titration software method.
This application note describes the atline monitoring of base content in an electroplating bath using the measurement of sodium hydroxide as an example. The note can be applied for various substance measurements such as chloride. |