Abstract: A washing water supply arrangement (50) comprises an ultra-pure water production unit (54), a supply pipe (52), an operation control (53) and an ultra-pure water impellent arrangement (55). A first end of the supply pipe (52) is connected to an output from the ultra-pure water production unit (54). A second end of the supply pipe is adapted for being connected to a semiconductor washing apparatus. The operation control (53) is configured for controlling the ultra-pure water production unit (54) to produce a pre-determined amount of ultra-pure water upon demand. The ultra-pure water impellent arrangement (55) has access to a source of an inert gas and is configured for rinsing the supply pipe (52) from water with the inert gas after delivery of the pre-determined amount of ultra-pure water. A semiconductor washing system, a semiconductor production system and a method for supplying washing water are also disclosed.

Abstract: A holder for a microtitreplate or an array of separate test tubes comprising a first panel (1) provided with a recess (2) for receiving each well (3) of the microtitreplate or test tubes and a second panel (7), which together with the first panel (1) and three side walls (5) form an inner space (8). The fourth side (9) comprises an inlet (10) for gas or liquid, whereby the gas or liquid entering the inner space (8) via the inlet (10) leaves the inner space (8) via said recesses (2), along the outside of the wells (3). A method for cooling or heating samples contained in wells (3) of a microtitreplate or an array of separate test tubes by inserting the microtitreplate or array of separate test tubes into such a holder and letting gas or liquid enter said inner space (8).

Abstract: A closed and yet flexible and easily adaptable reaction vessel system for performing liquid handling operations, such as sampling, incubating, homogenizing and/or metering fluids, can be constructed in a modular fashion, comprising a first container, to which at least two second containers are connected, wherein the contents of said second containers can be transferred from one of said second containers into said first container and back, or into another second container.

Abstract: A rotor assembly for centrifuging reaction vessels containing reaction mixtures in a device for asymmetric heating and cooling of reaction mixtures during centrifugation. The rotor contains at least one fan blade used to force ambient gas to pass the reaction mixture. Also provided is a device for asymmetric heating and cooling of reaction mixtures during centrifugation.

Abstract: A closed and yet flexible and easily adaptable reaction vessel system for performing liquid handling operations, such as sampling, incubating, homogenizing and/or metering fluids, can be constructed in a modular fashion, comprising a first container, to which at least two second containers are connected, wherein the contents of said second containers can be transferred from one of said second containers into said first container and back, or into another second container.

Abstract: A holder for a microtitreplate or an array of separate test tubes comprising a first panel (1) provided with a recess (2) for receiving each well (3) of the microtitreplate or test tubes and a second panel (7). which together with the first panel (1) and three side walls (5) form an inner space (8). The fourth side (9) comprises an inlet (10) for gas or liquid, whereby the gas or liquid entering the inner space (8) via the inlet (10) leaves the inner space (8) via said recesses (2). along the outside of the wells (3). A method for cooling or heating samples contained in wells (3) of a microtitreplate or an array of separate test tubes by inserting the microtitreplate or array of separate test tubes into such a holder and letting gas or liquid enter said inner space (8).

Abstract: Rapid mixing and homogenisation of reaction mixtures with respect to temperature and chemical concentrations, as well as greatly enhanced mass transport is achieved when the reaction mixture placed in a vassel suitable for centrifugation, and subjected to asymmetric heating, cooling and simultaneous centrifugation at conditions for creating an enhanced flow within the reaction mixture, wherein the flow ensures practically total mixing and homogenisation of the reaction mixture.

Abstract: The invention relates to rotor means (5) for centrifuging reaction vessels containing reaction mixtures in a device for asymmetric heating and cooling of reaction mixtures during centrifugation. The rotor means (5) comprise/-s at least one fan blade (18), which force ambient gas to pass the reaction mixtures. The invention also relates to a device for asymmetric heating and cooling of reaction mixtures during centrifugation comprising said rotor means (5).

Abstract: A reaction vessel includes a receiving portion and a capillary portion. The capillary portion has a first end having an opening in fluid connection with the receiving portion, and a second end closed by a plug portion formed as an integral one-piece member with the capillary portion. The capillary portion is optionally detachable from the receiving portion of the reaction vessel. The reaction vessel simplifies many processes involving small volume chemical reactions, such as Polymerase Chain Reaction (PCR) determinations.

Abstract: By arranging reagents needed for a specific reaction in separate distinct chambers in a reagent cartridge and combining several such reagent cartridges in a cassette in a format that matches that of commonly used microtitre plates. e.g. the 96 well format or other standard formats. several drawbacks of well-known procedures can be eliminated.