Sodium is a highly soluble metal which is commonly found in groundwater.  Elevated amounts of sodium can be detrimental to health and can enter the water cycle from the use of salt on roads or landfill leachate. Preventing it being consumed is why it is sometimes measured online.

In power plant applications, sodium is often measured in the production of ultra-pure water for use in generating steam to turn turbines.

Typically, online sodium analysers use an ion-selective electrode to detect sodium.

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Products for this application


An industrial colorimeter for wastewater measurement of sodium.

Online Colorimetric Analyser


A user friendly sodium analyser for the drinking water industry.

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A bit about us

Established in 1971 PMA is a well-recognised provider of online instrumentation for process control and compliance monitoring. With expertise in analytical techniques such as Photometry, Colorimetry, Ion-selective electrodes (ISEs), Titration, Fluorescence, Ultrasonics and more.

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