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USP L50 Multifunction resin with reverse-phase retention and strong anion-exchange functionalities. The resin consists of ethylvinylbenzene, 55% cross-linked with divinylbenzene copolymer, 3 to 15 µm in diameter, and a surface are of not less than 350 m2 per g.

Substrate is coated with quartenary ammonium functionalized latex particles consisting of styrene cross-linked with divinylbenzene

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