[iyanachk]

Almost every lab uses pH, ion-selective and ORP electrodes. They are quite expensive, do not last much, and can be easily ruined.

On the other side, there are numerous electrode manufacturers, and their products vary significantly in quality and price. Unfortunately, higher price does not always correspond to higher quality. The reproducibility of the quality/properties of the same model electrode could vary, too. Therefore, the selection of the best manufacturer and electrode model for the available budget is an important one.

I have been looking unsuccessfully for a sources that provide objective information and compare electrodes from different manufacturers. If the forum members are willing to share their experience with different models and manufacturers, maybe we can build such a database that will help the labs to select the best quality and value electrodes.

Thank you in advance!

[Hunter2]

For every use of a probe you have to do a calibration with standard solutions. So it doesn't matter its expensive or not and the quality is similar of the main manufacturers.