ResourceGeneral Lab
A Guide to pH Measurement - Theory & Practice of Laboratory pH Applications
8 Apr 2018This guide focuses on giving a clear and practical description of how to measure pH in the laboratory environment. A lot of tips and hints are given for the important points and the whole measurement description is later backed up by the theoretical description of acidity and alkalinity measurements. Attention is also given to the different kinds of pH electrodes available and the selection criteria for choosing the right electrode for a specific sample.
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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 and Conductivity MetersIon and pH meters, used for electrochemical techniques and measurements, measure the concentration of specific ions using electrodes (probes) and a meter. Features of ph and ion meters to consider include temperature compensation, auto-calibration, adjustable resolution, measurable range and accuracy. Meters can be handheld, portable, benchtop and modular.pH Measurement