发明名称 |
Solid phase extraction medium. |
摘要 |
<p>A method for isolating an environmentally hazardous organic contaminant from a fluid utilizes a solid phase extraction medium comprises a PTFE fibril matrix, and sorptive particles enmeshed in said matrix comprising more than 30 and up to 100 weight percent of porous organic particles, and less than 70 to 0 weight percent of porous (organic-coated or uncoated) inorganic particles, the ratio of sorptive particles to PTFE being in the range of 40:1 to 1:4 by weight. The extraction medium is useful in pesticide, phenolics, and residue of explosives separations. The separations can be efficiently performed in a stacked disk format.</p> |
申请公布号 |
EP0498557(A1) |
申请公布日期 |
1992.08.12 |
申请号 |
EP19920300738 |
申请日期 |
1992.01.29 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
MARKELL, CRAIG G.;HAGEN, DONALD F.;LUEDTKE, JAMES D. |
分类号 |
B01D15/00;B01D15/04;B01D15/08;B01D53/02;B01J20/26;B01J20/28;G01N30/52 |
主分类号 |
B01D15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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