Abstract: A blood sampling device is provided having holder with a manipulating end and an absorbent probe on the opposing end. The probe is of hydrophilic polymer sized to directly absorb a predetermined volume of up to about 30 microliters of blood. Ribs on the holder position the probe within a compartment of a container to prevent contact with the container. The ribs also position the probe within extraction wells.

Abstract: A blood sampling device is provided having holder with a manipulating end and an absorbent probe on the opposing end. The probe is of hydrophilic polymer sized to directly absorb a predetermined volume of up to about 30 microliters of blood. Ribs on the holder position the probe within a compartment of a container to prevent contact with the container. The ribs also position the probe within extraction wells.

Abstract: A slurry chamber is fastened to and held in coaxial alignment with a chromatography column by a V-band. One end of the column has an end cap and frit. A slurry of fluid and chromatographic media is placed in the column and chamber. A piston is forced through the chamber and into the column by a hydraulic ram to expel the fluid and form a media bed in the column. The slurry chamber is removed, and a split end cap is fastened to the column. A threaded recess in the split end cap receives a split, threaded collet. The collet is tightened until it pushes against the piston with the same force as the ram, at which point the ram is released and the column removed for use.

Abstract: A cartridge for use in purification processes, including liquid chromatography, scavenging and reactions, is described. In one embodiment, the cartridge can include a tubular member and at least one porous member fitted within the interior region of the tubular member. The tubular member can have an interior surface forming an interior region and an exterior surface. The exterior surface can include one or more ribs protruding from the exterior surface along at least a portion of the exterior surface, such as longitudinal ribs and/or whole or partial circumferential ribs.

Abstract: A method of processing a sample comprising introducing a sample into a flow-through device containing a porous solid media therein, and thereafter subjecting the device to microwave energy.

Abstract: Systems, methods, and computer program products for determining conditions for performing chromatography. A method may be provided for separating compounds in a sample by a column chromatography system. That method includes receiving input including an indication of a retention factor that includes an indication of a first retention factor of a first component of a sample compound, and an indication of a solvent ratio; generating a gradient profile based on the received input; and separating a sample compound based on the gradient profile. In that method, the solvent ratio corresponds to the first retention factor indicated by the input and is a ratio of a first solvent and a second solvent, and the gradient profile includes a gradient portion including a starting point and an ending point corresponding to a starting ratio and an ending ratio of the first and second solvents.

Abstract: A device for transferring small drops of liquid from one or more liquid holders to one or more liquid destinations is disclosed. The device includes a support member and a plurality of fluid transfer members extending from the support member. Each fluid transfer member includes a flexible liquid transfer end.