EN ISO 14911 Water Quality, Determination of Dissolved Cations Using Ion Chromatography, Method for Water and Waste Water

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of EN ISO 14911 testing. This international standard specifies methods for water and wastewater using dissolved cations Li+, Na+, NH4+, K+, Mn2+ in water, Ca2+, Mg2+, Sr2+ and Ba2+ (eg drinking water, surface water, wastewater), ion chromatography.

The variety of suitable and appropriate mechanisms and the procedural steps associated with them allow only a general description.

Liquid chromatographic separation of Li+, Na+, NH4+, K+, Mn2+, Ca2+, Mg2+, Sr2+ and Ba2+ by means of a separator column uses a low-capacity cation exchanger as the stationary phase and aqueous solutions of mono and dibasic acids as mobile phases.

These cations are detected by conductivity. It is essential that the eluents have sufficiently low conductivity. Therefore, a conductivity detector (CD) is often combined with a suppressor device that will reduce the conductivity of the eluent and convert the separated cations to their corresponding bases.

In conductivity determination without chemical suppression, the difference between ion equivalent conductivities is measured immediately after the column. This difference should be as high as possible and the detector cell temperature should be stabilized within ± 0,1°C.

EUROLAB assists manufacturers with EN ISO 14911 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.