pH measurement in electroplating baths and dyestuffs

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pH measurement in electroplating baths or in pigments and dyes is not easy due the difficult sample matrix. It is of great importance that the choice of electrode meets the measurement needs. There are components in an electroplating bath (strong acids, metal ions) which can contaminate the electrolyte solution within the electrode. This is why a pH electrode with bridge electrolyte and a large electrolyte flow should be chosen. When measuring in pigment samples they can easily block the diaphragm of the electrode. Here you need a robust diaphragm such as a ground joint diaphragm, which can cope with such conditions.
	Normal samples For easy-going measurements, your system is the Metrohm 827 pH lab and the ideal electrode: the Metrosensor Unitrode.
	If your sample contains gases... such as ammonia and the electrolyte solution is contaminated with the sample, we recommend the Metrohm meter 827 pH lab together with the Metrosensor Profitrode, a combined pH electrode with double junction reference part.
	If you notice precipitation in the diaphragm... use the Metrohm 827 pH lab together with the Metrosensor Profitrode, a combined pH electrode with ground-joint diaphragm and bridge electrolyte.

	When it comes to plant measurements in electroplating baths or dyestuffs, the Metrohm 826 pH mobile with the Metrosensor Unitrode will perfectly do the job!