The Orion ROSS pH
electrode, which is recognized as the best pH electrode in the world for
difficult samples, is now even better.
The Orion ROSS
Ultra has twice the warranty and greater stability than its predecessor. It
uses a unique reference system that offers longer life, greater stability, and
fast results, regardless of sample composition or temperature.
are refillable and the filling solution can be modified with some organic
components to decrease potential junction problems.
They have no
metallic ions, thus eliminating the sample contamination with silver that often
occurs with silver/silver chloride references.