| 摘要 |
<p>The present invention involves a simple, disposable, manual filtration and extraction device and method of use that provides a sample directly to an analytical method. The device is capable of providing a clarified liquid rea dy for analysis or disposal as appropriate for the specific analyte of interest , and is capable of capturing particulate materials and allowing for further extraction of those particles directly with the device. Once extracted, the device will deliver a liquid containing the analyte of interest to an analytical method. The filtration and extraction device includes a pliant bo dy having an open top end and an internal wall defining an inner chamber. A sealing mechanism is adapted to seal the open top end of the body. A gradien t filter assembly including at least one filter is supported by a support assembly carried by the body. The pliant body is adapted to be squeezed by a user's fingers so as to impart a positive pressure in the chamber sufficient to cause a fluid in the chamber to flow through the filter assembly.</p> |
