System brings together modular design and automation for ion chromatography

Metrohm has introduced OMNIS IC, an ion chromatography system that it has designed to bring flexibility, automation and reliability together on a single analytical platform. The system is built on a modular hardware concept and is operated through intuitive software, and it has been developed to address both current and future analytical demands while ensuring efficiency and reproducible results.

OMNIS IC is based on a modular hardware concept comprising functional units such as pumps, injectors, detectors and dosing units. These components can be combined as required to create a customised ion chromatography system. This modularity allows laboratories to configure systems precisely according to their analytical requirements and to expand them as their applications grow in complexity.

The system supports a high degree of automation across workflows that range from sample preparation to result validation. Automated eluent preparation and continuous monitoring of fill levels have been built in to help prevent interruptions. A number of inline sample preparation steps – dilution, filtration and dialysis among them – together with intelligent injection techniques such as partial loop injection, preconcentration and matrix elimination, reduce the need for manual intervention and minimise the risk of user error.

To ensure stable and reproducible results, OMNIS IC continuously monitors system status, including pressures, flows and liquid levels. Pre‑run checks validate sample lists, while equilibration checks ensure that measurements begin only once stable conditions have been reached. Functions such as AutoPurge and AutoRinse have been designed to maintain a gas‑free flow path and to prevent sample carryover between runs.

OMNIS IC is operated via the OMNIS Software, which features a clearly structured and intuitive user interface. Visual icons, dropdown menus, tooltips and integrated help functions support fast familiarisation, so that experienced analysts and new users alike can work efficiently and with confidence.

OMNIS IC has been fully integrated into the OMNIS platform, which enables ion chromatography, titration and near‑infrared spectroscopy to be controlled within a single software environment. Analytical results from different techniques are consolidated on a sample‑centric basis, which breaks down data silos and simplifies reporting; this has proved useful, for example, in applications such as drinking water analysis.

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