ResourceGeneral Lab
How to Measure pH in TRIS-Containing Samples
27 Feb 2017Interactions 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.
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pH Meters and ElectrodesIon and pH meters are electrochemical equipment used to measure the pH (acidity or alkalinity) or specific ion concentration of a solution. Other meters can also measure the conductivity or dissolved oxygen content of a solution. pH meters, specific ion meters, conductivity meters and dissolved oxygen meters can come as benchtop or portable equipment. A meter’s electrodes can be replaced with easy to clean electrodes or electrodes for difficult media. pH, ion and conductivity meters are typically used in life science research, pharmaceutical testing, food and beverage, environmental and water analysis. Find the best pH meters and electrodes in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.pH Measurement