Online iron monitors use colorimetry to determine the iron concentration in water.

Iron analysers are typically found in both the drinking water production process and in wastewater applications where iron is dosed into the water as a coagulant. Ensuring iron has been removed from the final water leaving the plant (whether that be in the final drinking water or in the effluent discharge to the environment in wastewater) can be achieved.

There are a number of different colorimetric chemistries that can be used for online iron analysers, which is best depends upon the application. As a reagent manufacturer, PMA can offer ferrozine, phenanthroline or TPTZ (2,4,6-Tris(2-pyridyl)-s-triazine) based chemistry for our colorimeters. We also offer chemistries for Ferrous (Fe2+), Ferric (Fe3+) and Total iron (Fe2+/ Fe3+).

Which method is best to use depends on a variety of factors. Get in touch below to discuss your requirements

Ferrozine Method

Phenanthroline Method

TPTZ Method

Products for this application

We have a wide range of products, designed to suit everyone.

Full catalogue

We supply off the shelf reagents for the following instruments.

Particle element
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An industrial colorimeter for wastewater measurement of iron.

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Particle element
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A user friendly iron colorimeter for industrial applications.

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Bespoke Manufacturing Services

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Whitelabel solutions

We can also supply Iron Reagents for your instruments, to your formulation, with your branding, full traceability, bespoke MSDS’, and C of A’s. See our manufacturing capabilities for more information or get in touch below.

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