发明名称 |
Method and apparatus for directly sampling a fluid for microfiltration |
摘要 |
Filtration cells capable of direct sampling of a fluid from a container and which may be used for microfiltration of both small and large microvolumes of a fluid to be filtered are provided Also a process for directly transferring a fluid to be filtered from a container to a filtration cell is described. The filtration cells have one or more reservoirs and are in communication with fluid in a container to be filtered through a piercing instrument connected to a base and support for a reservoir that receives the fluid to be filtered after it passed across a filter membrane. The filtration cell may then be pressurized and vented to allow fluid to be filtered to reciprocally and tangentially pass across a filter membrane between either a container having a fluid to be filtered and a single reservoir for small volume filtrations or between two reservoirs after pressurizing a fluid to be filtered into the reservoirs from a container using a piercing instrument. Side wells for collecting samples from the bottom up from the filtration cell outlet are also provided as are a process incorporating automated equipment for transferring the container having fluid to be filtered to the piercing point for entry into the filtration cell.
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申请公布号 |
US6740240(B2) |
申请公布日期 |
2004.05.25 |
申请号 |
US20020068331 |
申请日期 |
2002.02.06 |
申请人 |
BIO/DATA CORPORATION |
发明人 |
COVILLE WILLIAM E.;ST. ONGE DAVID M. |
分类号 |
B01D61/14;B01D61/18;B01D65/08;B01L99/00;G01N1/00;G01N1/28;G01N33/49;(IPC1-7):B01D61/00 |
主分类号 |
B01D61/14 |
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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