申请人:DeVoe-Holbein International N.V.
公开号:EP0136578A2
公开(公告)日:1985-04-10
A composition is contacted with an aqueous solution having a pH greater than 2 containing a suitable Th4+ chelating agent and a carboxylic acid. The composition comprises either
(A) one or more organic chelating compounds comprising microbial siderophores, covalently fixed to the surface of a suitable insoluble carrier and possessing one or more co-ordinating sites, or
(B) one or more catechol compounds covalently fixed to the surface of a suitable insoluble carrier at the benzene ring thereof, the catechol compounds comprising unsubstituted catechol or catechol substituted on the benzene ring by one or two electrophilic substituents.
一种组合物与 pH 值大于 2 的水溶液接触,该水溶液含有一种合适的 Th4+ 螯合剂和一种羧酸。 该组合物包括:(A) 一种或多种有机螯合化合物,包括微生物嗜苷酸盐,共价固定在一种合适的不溶性载体表面,并具有一个或多个配位位点;或 (B) 一种或多种儿茶酚化合物,共价固定在一种合适的不溶性载体表面的苯环上,儿茶酚化合物包括未取代的儿茶酚或在苯环上被一个或两个亲电取代基取代的儿茶酚。