Bioprocessing
Accelerate your biologic drug development with Praesto®
chromatography resins.

Accelerate your biologic drug development with Praesto®
chromatography resins.
As the global leader in resin technology, we develop and manufacture small beads that are used in the most regulated industries in the world to separate, remove or recover very specific elements and compounds.
Learn MoreWith 40 years of manufacturing expertise and 30 years of regulatory experience, we supply leading separation, purification and extraction technologies to support chromatography and biocatalysis applications in healthcare and life sciences.
Learn moreWe are the world leader in resin-based separation, purification and extraction technology, that provides sustainable solutions for our environment, businesses and healthcare.
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Arsenic is a toxic substance with varying degrees of regulation. The standard MCL for arsenic in drinking water for the USA is 10 ppb.
FerrIX A33E is an iron-infused anion resin that uses iron oxide to complex and remove pentavalent and trivalent arsenic from water. FerrIX A33E reduces arsenic levels to < 2 ppb and is ideal for municipal treatment plants, point-of-entry (POE) and point-of-use (POU) systems. It is compatible with most existing lead-lag or parallel design configurations and is recommended for either single use or for applications needing off-site regeneration.
For water systems where brine regeneration is feasible, we recommend Purolite A300E anion resins to remove only the pentavalent form of arsenic. Pre-oxidation is recommended for converting the trivalent to the pentavalent form before removal by the resin. Any excess of oxidant must be removed before contact with the resin.
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