Abstract: The present invention relates to a method for the analysis of a gaseous component or of a component that can be transformed into gaseous form (23) of a sample (5) which provides that the sample (5) is filled into a sample receptacle (2) through a receptacle opening (4), and an analysis receptacle (7), which was previously supplied with a tracer reagent, is then by way of its receptacle opening (4) connected with the receptacle opening (4) of sample receptacle (2) via an adapter (10), after which step the component (23) is expelled from the sample receptacle (2) and into the analysis receptacle (7) wherein the analysis receptacle (7) is connected with the outside atmosphere in such a manner that a pressure compensation can take place. The invention further relates to a test kit, in particular, a test kit for implementing the method.

Abstract: Apparatus for eliminating halide ions such as chloride ions from aqueous solutions having a hollow cylindrical sample holding chamber (2), the front end of which has an orifice (3) and in the vicinity of which is disposed a filter plate (4) that extends over the cross section of the sample holding chamber (2) and is liquid-permeable and essentially impermeable for solids and is inserted in a fixed manner into the hollow cylinder; a plunger (6) which can move to and fro in the sample holding chamber (2) and has a plunger stem (7) attached thereto engages in the open rear end (5) of the sample holding chamber, and, in the sample holding chamber (2) between the filter plate (4) and the plunger (6) is disposed a freely movable bed (7) of an adsorbent reacting with halide ions and forming a sparingly soluble compound, which bed fills a part of the sample holding chamber (2). The adsorbent is preferably charged with silver nitrate as compound reactive with halide ions.

Abstract: The invention concerns a method for purifying biological macromolecules, e.g. nucleic acids or proteins, from starting materials, in which the macromolecules, contained in a biological solution, are purified on a chromatographic material, and in which endotoxins are partially or completely removed with the aid of a nonionic surfactant, which is characterized in that the surfactant and the biological solution are brought into contact immediately before or during the purification of the macromolecules on the chromatographic material.

Abstract: Disclosed is an apparatus for isolating nucleic acids having a separation column which has a top inlet and a bottom outlet in which a separation device is arranged, and having a collection vessel for collecting liquid emerging from the outlet. The ratio between the internal volume of the separation column above the separation device and the surface area of the separation device is at least 10 ml/cm2.