Patent ID: 6177008
Filing Date: 2001-01-23
Classification: B01D,G01N

Abstract:
A dual compartment solid phase extraction cartridge useful in the gravity separation of components of a liquid and solid mixture at ambient pressure said cartridge comprising a container having an open top end with a fitting stopper and bottom end with a fitting cap; so that a sample can be shaken with the packing material of a top volume before it begins to flow out of the cartridge; the container being divided into the top volume and a bottom volume by a first porous filter or frit which functions to retain solid matter from entering the bottom volume of the cartridge; the top and bottom volumes having a quantity of sorbent; a second porous filter or frit being located at the bottom of the cartridge to contain the sorbent in the bottom volume; such that when a liquid and solid mixture is added to the top volume of the cartridge, the sorbent in the top volume retains the solid material while the liquid moves through the first filter or frit and through the sorbent of the bottom volume and out of the cartridge.