Abstract: The invention relates to a method for determining the cytotoxic effect of an analytical sample on animal cells, including human cells.

Abstract: The invention relates to a method for isolating an aqueous hydrochloric acid solution of FeCl3 from an aqueous multi-component system.

Abstract: The invention relates to a method for the preparation of living, microbial samples and microorganisms for subsequent mass spectrometric measurement and evaluation. Findings which can be derived from such a measurement can particularly serve the faster identification of microorganisms in the microbial sample according to species/subspecies and/or the fast determination of resistance/sensitivity of the microorganisms to antimicrobial substances and/or the further characterization of microorganisms, for example in respect of pathogenicity, virulence and metabolism. According to a preferred embodiment of the invention, the preparation particularly takes place directly on a mass spectrometric sample support.

Abstract: The invention relates to a method for the preparation of living, microbial samples and microorganisms for subsequent mass spectrometric measurement and evaluation. Findings which can be derived from such a measurement can particularly serve the faster identification of microorganisms in the microbial sample according to species/subspecies and/or the fast determination of resistance/sensitivity of the microorganisms to antimicrobial substances and/or the further characterization of microorganisms, for example in respect of pathogenicity, virulence and metabolism. According to a preferred embodiment of the invention, the preparation particularly takes place directly on a mass spectrometric sample support.

Abstract: The invention relates to a tank cleaning device comprising a tank cleaner (1) having a drive means (18) comprising a drive means component, a nozzle holder (5) rotatable about two axes (D, L) and at least one nozzle (6) arranged on the nozzle holder (5). In order to adapt the tank cleaner quickly to a particular use thereof, it is proposed that at least one of the components drive means (18), drive means component, nozzle holder (5) and nozzle (6) be designed as a replaceable element, that the type of replaceable element be defined by said component, that the tank cleaner (1) include a replaceable element holder, and that a first group (27) comprising at least two replaceable elements of one type be provided. A method for operating a tank cleaning device and a method for cleaning a tank are also proposed.

Abstract: The invention relates to a method for the preparation of living, microbial samples and microorganisms for subsequent mass spectrometric measurement and evaluation. Findings which can be derived from such a measurement can particularly serve the faster identification of microorganisms in the microbial sample according to species/subspecies and/or the fast determination of resistance/sensitivity of the micro-organisms to antimicrobial substances and/or the further characterization of microorganisms, for example in respect of pathogenicity, virulence and metabolism. According to a preferred embodiment of the invention, the preparation particularly takes place directly on a mass spectrometric sample support.

Abstract: A method for producing a part sample from a motor vehicle metallic welded part is disclosed having the steps of providing the metallic welded part, introducing the part into a water jet cutting device, water jet cutting a part sample section, which includes at least partially a weld seam, with the water jet cutting process being performed with sand mixed in, and removing and visually inspecting the part sample as a metallurgic micrograph.

Abstract: The invention, in different embodiments, relates to a device for treating fluids, particularly body fluids, which comprises a receiving container for receiving the fluid from a body, a filter device which comprises a filter element for filtering out pathogenic particles from the fluid, and a cultivation device configured to incubate the filtered pathogenic particles on a nutrient medium, said filter device being coupled to the cultivation device such that the pathogenic particles can be transferred from the filter element into the cultivation device without contamination. A corresponding method is also provided.

Abstract: The invention relates to a method for producing diamines and polyamines of the diphenylmethane series in which, by using a coalescence auxiliary in the phase separation of the process product obtained in the scrubbing of the neutralized crude product, the fraction of water and thus also of water-soluble impurities in the organic MDA-containing phase is reduced. According to the invention, the coalescence auxiliary used is a filter bed made of coalescence fiber material. The di- and polyamines of the diphenylmethane series obtained after distillative purification of this MDA-containing organic phase are exceptionally suitable for the preparation of the corresponding isocyanates.

Abstract: The invention relates to a method for producing diamines and polyamines of the diphenylmethane series, wherein first aniline and formaldehyde are reacted in the absence of an acidic catalyst to form a reaction mixture containing animal and water and, after the water has been separated the aminal is reacted by acid catalysis to form a reaction mixture containing diamines and polyamines of the diphenylmethane series, wherein the separation of the water from the aminal is supported by the use of a coalescence aid. According to the invention, a filter bed made front coalescence fiber material is used an coalescence aid.

Abstract: The invention relates to a method for producing diamines and polyamines of the diphenylmethane series, wherein first aniline and formaldehyde are reacted in the absence of an acidic catalyst to form a reaction mixture containing aminal and water and, after the water has been separated, the aminal is reacted by acid catalysis to form a reaction mixture containing diamines and polyamines of the dephenylmethane series, wherein the separation of the water and aminal is supported by the use of a coalescence aid. According to the invention, a filter bed made of coalescence fiber material is used as coalescence aid.

Abstract: The invention relates to a method for producing diamines and polyamines of the diphenylmethane series, wherein first aniline and formaldehyde are reacted in the absence of an acidic catalyst to form a reaction mixture containing aminal and water and, after the water has been separated the aminal is reacted by acid catalysis to form a reaction mixture containing diamines and polyamines of the diphenylmethane series, wherein the separation of the water from the aminal is supported by the use of a coalescence aid. According to the invention, a filter bed made from coalescence fiber material is used an coalescence aid.

Abstract: Apparatus for perforating a component includes at least one robotic arm having a free end for securement of an adapter. At least one hole punch is coupled by the adapter to the robotic arm. The adapter can be configured in one of two ways, a first way in which the adapter supports a component gripper in addition to the hole punch, a second way in which the adapter supports a further hole punch in addition to the one hole punch.

Abstract: In a device for engraving screen-based impression cylinders, particularly for intaglio printing, by means of an engraving element in an electronic engraving machine, an engraving element is controlled by an engraving signal which engraves a series of wells into the rotating impression cylinder line by line. The wells are arranged according to a screen defined by presettable engraving parameters, and their engraving depths represent the engraved tone values. To engrave the entire surface area of the wells, the engraving element moves in a feed motion along the impression cylinder in the direction of the axis of the impression cylinder. The screen geometry is determined by the peripheral speed of the rotating impression cylinder and the feed motion of the engraving element.

Abstract: A clamping device for structural components includes a clamping rod and a clamping arm which can be pivoted from a clamping position into a ready position and vice versa. A rigid lever is rigidly connected through a pivot shaft to the clamping arm. A rigid bracket is rotatably coupled to the lever and to an end of the clamping rod. The length of the rigid bracket between the coupling joints is greater than the distance between the first coupling joint of the bracket with the lever and the longitudinal axis of the clamping rod in the ready position.