Metrohm, 6.0103.5430, Metrosep A Supp 20 - 250/4.0

The Metrosep A Supp 20 - 250/4.0 is an advanced anion chromatography column designed for high‑quality separations in regulatory and method‑driven applications. With its extended column length and exceptional separation efficiency, it is ideally suited for the precise determination of standard anions and oxyhalides in accordance with US EPA 300.1 Parts A and B and ISO 10304 Parts 1 and 4. Its performance across a wide range of water and matrix types makes it a reliable choice for laboratories requiring consistent and compliant anion analysis.
Built on a durable polystyrene/divinylbenzene substrate, the selectivity of the Metrosep A Supp 20 - 250/4.0 is optimized for operation with isocratic carbonate eluents, offering a particularly robust and user‑friendly solution for long‑term IC operation. The long version of the Metrosep A Supp 20 delivers enhanced resolution, providing improved separation power and enhanced compatibility with complex sample matrices.
The Metrosep A Supp 20 - 250/4.0 is well suited for demanding applications involving environmental samples, industrial wastewaters, and other challenging sample matrices. It supports the full application range typically handled by high‑capacity anion columns, thereby focusing on the determination of oxyhalides, standard anions, and dichloroacetate, and offering superior method robustness and analytical flexibility.