Sorbent and process of solid phase extraction

专利名称：Sorbent and process of solid phase

extraction

发明人：Aniela Leistner,Andre Leistner申请号：US11117671申请日：20050428

公开号：US20060138052A1公开日：20060629

专利附图：

摘要：A sorbent comprising a spherical, highly porous polymer with specific

hydrophobic-hydrophilic properties, specific pore volume and its distribution, as well as amethod of solid phase extraction using said sorbent. The sorbent is produced by

suspension polymerization of at least one hydrophilic monomer and at least onehydrophobic monomer, where the hydrophilic monomer comprises an imidazole moietyand the hydrophobic monomer is a mixture of isomeric divinylbenzene monomers andisomeric ethylvinylbenzene monomers. The sorbent has a pore diameter range from 5 Åto 1000 Å, an average pore diameter of 50 Å to 250 Å, and a pore volume from 1 ml/g to2 ml/g comprising 15% to 25% micropores, 50% to 80% mesopores, and 5% to 30%macropores. Solid phase extraction columns and plates packed with the sorbent of thisinvention provide reliable high recoveries for a broad spectrum of analytes with variouspolarity, even if the sorbent is dried out multiple times during the extraction.

申请人：Aniela Leistner,Andre Leistner

地址：Birkenstein DE,Birkenstein DE

国籍：DE,DE

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