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Multimodal Anion Exchange Matrices | Aspen Xchange
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A U.S. Patent for “Multimodal Anion Exchange Matrices” was awarded to Cytiva on October 27th, 2020. The present invention discloses a separation matrix which comprises a plurality of separation ligands, defined by the formula R.sub.1-L.sub.1-N(R.sub.3)-L.sub.2-R, immobilized on a support, wherein R.sub.1 is a five- or six-membered, substituted or non-substituted ring structure or a hydroxyethyl or hydroxypropyl group; L.sub.1 is either a methylene group or a covalent bond; R.sub.2 is a five-or six-membered, substituted or non-substituted ring structure; L.sub.2 is either a methylene group or a covalent bond; R.sub.3 is a methyl group; and wherein if R.sub.1 is a hydroxyethyl group and L.sub.1 is a covalent bond, R.sub.2 is a substituted aromatic ring structure or a substituted or non-substituted…
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