Thermo Fisher Scientific is pleased to announce a new technical note discussing rapid separation of inorganic cations in municipal wastewater using our high pressure capillary Ion Chromatography system, the Thermo Scientific Dionex 5000+ ICS HPIC system. Technical Note 121: Fast Determinations of Inorganic Cations in Municipal Wastewater Using High-Pressure Capillary IC demonstrates how the separation of inorganic cations are important to municipal drinking water and wastewater treatment plants for compliance monitoring. Cationic determinations are necessary as part of the water monitoring program’s secondary water specification of acceptable taste. In addition, for municipal wastewater, cation determinations ensure that high-salt concentrations are not discharged into the water system and hence result in a negative impact on the environment.

With the upgrade to high pressure, capillary systems can operate at system pressures up to 5000 psi. This advance in technology allows 2X to 3X the µL/min flow rates with all the same advantages as standard pressure capillary IC, resulting in low consumption of water (30 to 40 mL/d of water) and low waste generation. Capillary IC systems can remain on 24/7 with minimal resource consumption which translates into a system which has greater ease-of-use, a longer lasting eluent generator cartridge and a far more inexpensive cost of ownership associated with it.

This technical note and many others can be found at www.thermoscientific.com/dionex under the Documents tab.