Abstract: An extraction device for liquid—liquid extraction of at least one analyte from a sample and on-line transfer of the analyte(s) to a gas chromatography extraction unit, a sample inlet, a sample outlet, and an organic liquid inlet, wherein the extraction device also includes a needle to be connected with a gas chromatography apparatus injector for the on-line transfer of the analyte(s) from the membrane-based extraction unit to the gas chromatography apparatus via the needle, an organic liquid being immobilized as a stagnant phase in a volume of less than 20 &mgr;l in the membrame-based extraction unit.

Abstract: An extraction device for liquid-liquid extraction of at least one analyte from a sample and on-line transfer of said analyte(s) to a gas chromatography extraction unit, a sample inlet, a sample outlet, and an organic liquid inlet, wherein it also comprises a needle to be connected with a gas chromatography apparatus injector for the on-line transfer of the analyte(s) from the membrane-based extraction unit to the gas chromatography apparatus via the needle, an organic liquid being immobilized as a stagnant phase in a volume of less than 20 &mgr;l in the membrame-based extraction unit.

Abstract: A modular separation system wherein a separation unit is separate from a mounting device that accommodates the separation unit in a separation apparatus. The mounting device is an integral part of the separation apparatus. A method for fluid-fluid extraction of an analyte from a sample fluid to a receiving fluid in a separation apparatus.

Abstract: A device for the crushing of medicinal tablets, comprising a base with a cavity for holding and enveloping at least the lower part of a beaker for containing one or more tablets which are to be crushed, a shaft with a handle at one end thereof and a crushing head at the other, a cap movable along said shaft and provided with a ramming surface at its surface facing the crushing head, said ramming surface cooperating with a similar ramming surface on said crushing head in order to effect, by a knocking action, the removal of any crushed tablet or powder present on the crushing head, said knocking action being effected by retaining both the cap and the handle, and then allowing the cap to fall against said crushing head.