Chemically modified solid phase extraction particles and...

B - Operations – Transporting – 01 – J

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B01J 20/26 (2006.01) B01D 15/00 (2006.01) B01J 20/28 (2006.01) B01J 39/26 (2006.01) B01J 41/20 (2006.01) B01J 47/00 (2006.01)

Patent

CA 2189553

A functionalized macroporous poly(styrene divinylbenzene) particle comprises at least one ionic functional group covalently bonded thereto, the functionalized particle having sorptive capability towards an analyte, said functional group being present in the range of 0.1 to 2.5 milliequivalents per gram of poly(styrene divinylbenzene). The functionalized particles can be used in a packed column or enmeshed in a nonwoven web for utility in solid phase extraction applications.

L'invention concerne une particule macroporeuse de poly(styrène-co-divinylbenzène) rendue fonctionnelle à laquelle est greffé par liaisons covalentes au moins un groupe fonctionnel ionique. Les particules rendues fonctionnelles présentent des propriétés de sorption vis-à-vis d'un analyte, ledit groupe fonctionnel étant présent à raison de 0,1 à 2,5 milliéquivalents par gramme de poly(styrène-co-divinylbenzène). Les particules rendues fonctionnelles peuvent être utilisées dans une colonne garnie ou immobilisées par une étoffe non tissée, pour effectuer des extractions en phase solide.

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