Electrodes

Overview

High quality pH electrodes from Sirius

Our pH electrodes are manufactured to a high standard. Each electrode is tested at Sirius following rigorous procedures to assure its performance characteristics.

Electrodes for use on GLpH are tested by doing at least four hourly automated calibrations, each time rinsing the electrode in pH7 buffer, then calibrating in a second pH7 buffer, then rinsing and calibrating in pH4 and pH10. Only electrodes with slopes greater that 98% and less than 0.6mV drift in pH7 between the final two calibrations are passed for sale.

Electrodes for use on GLpKa, PCA200 and PCA101 are tested by doing at least two blank titrations between pH 1.8 and 12.2. Only electrodes with all parameters in specification are passed for sale. Our current Four-Plus specification requires alpha values between 0.04 and 0.16, S between 0.99 and 1.01, jH between 0 and 3, and jOH between -3 and 0.5.

Electrodes for use on Vinotrate. Vinotrate is a new product, and electrode test procedures are still under development.

Electrode part numbers and accessories

Accessories

Electrode Length adaptor

For use with Sirius electrodes when using partition solvents such as chloroform and dichloroethane which are denser then water. The adaptor allows the electrode to be held in a raised position in the electrode holder. This keeps the electrode bulb in the water for better results.