How to Measure pH in TRIS-Containing Samples

Interactions between components of a TRIS buffer and an electrolyte solution can block the junction of a pH sensor, interfering with pH measurement and shortening the life of a sensor. This application note describes methods of avoiding junction blockage, including the use of different types of junctions and a more suitable reference system such as METTLER TOLEDO’s ARGENTHAL system. This article highlights the benefits of using this equipment, including improved sensor accuracy and extended sensor lifetime.