Iranian Company Indigenizes pH Electrode for Measuring Acidity
“The pH electrode is one of the most practical and important sensors for determining the acidity of solutions or solid and semi-solid materials in all industries and is used in quality control laboratories, water and wastewater, pharmaceutical, dairy, etc.,” said Mo’een Ashkani, the managing director of the knowledge-based company.
“All components of these sensors, including body and membrane, are produced by the company, and now this company is stationed at East Azerbaijan Science and Technology Park,” he added.
Noting that the electrode can be installed on all pH-meter devices of the WTW company, Ashkani said, “Due to the presence of platinum junction, it offers much higher accuracy and speed and can meet general to specialized needs.”
“Our annual production capacity is 1,500 pH electrodes,” he added.
Since accurate measurement of pH values of specific solutions or substances is an essential variable in many situations, pH meters are commonly used instruments in many industrial applications. A pH meter is an electric device that measures hydrogen-ion activity (acidity or alkalinity) in a solution – which is, ultimately, expressed as a pH value – and consists of a voltmeter that is connected to a pH-measuring electrode and a reference electrode.
pH electrodes, which are analytical sensors, are used to measure the potential of hydrogen (pH), or the negative logarithm of the hydrogen ion activity, in a solution. The technology behind pH electrodes has not changed much in the past half-century or so, yet pH electrode manufacturing remains an art. pH electrodes are constructed from a special composition glass which can sense the hydrogen ion concentration. The special glass body of an electrode is blown to its configuration by glass blowers and is neither a terribly advanced nor particularly ‘high tech’ process, but a very critical and important step in pH electrode manufacturing, nonetheless.
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