摘要:
A reactor assembly for analysing the effluent stream from at least one flow-through reactor, The reactor includes a flow-through reactor for performing at least one chemical reaction. The flow-through reactor includes a reaction chamber including a reaction zone, the reaction chamber being connected to a reactor inlet for a reactant, upstream of the reaction zone and a reactor outlet for the effluent stream from the reaction zone, downstream of the reaction zone; and an analyser for subjecting the effluent stream to an analysing procedure, each reactor outlet being connected to an analyser by an effluent conduit. The reactor assembly further includes a dilution fluid supply member for adding a dilution fluid to the effluent stream, downstream of the reaction zone.
摘要:
In a process and a device for the parallel preparation of at least 4n oligonucleotides, at least four inserts each with n reaction vessels are first arranged on a plate (16), each reaction vessel containing a nucleotide initiator base bound to an inert carrier. Particular operations are then carried out in parallel with one another at four stations (28, 30, 32, 34), and in particular a deblocking operation simultaneously in all n reaction vessels of the insert at the first station (28), a first washing operation simultaneously in all n reaction vessels of the insert at the second station (30), a coupling operation in all n reaction vessels of the insert at the third station (32), and, simultaneously in all n reaction vessels of the insert at the fourth station (34), a second washing operation followed by a capping operation followed by a third washing operation followed by an oxidation operation followed by a fourth washing operation. The plate (16) with the inserts is rotated station by station, the above-mentioned operations being carried out, until the desired oligonucleotides have been formed by coupling individual nucleotides to one another.
摘要:
The present invention relates to a method of reducing the deposit of metallic transition metal, particularly palladium, on a metal part in hydrogenation reactions using hydrogen and a heterogenous supported palladium catalyst. These metallic transition metal deposit, particularly palladium deposits, are particularly formed at areas which are exposed to high velocity and shear forces of the hydrogenation mixture comprising the transition metal catalyst, particularly palladium catalyst. They are significantly reduced or even avoided when the surface of the respective metal parts are coated by a plasma sprayed ceramic coating.
摘要:
A high-density micro-chamber array has a translucent flat substrate, a hydrophobic layer in which a plurality of micro-chambers are provided, and a lipid bilayer membrane formed in each of the openings of the micro-chambers, wherein an electrode is provided in each of the micro-chambers, and when the side of the substrate on which the hydrophobic layer is provided is directed upward, the micro-chamber array is configured such that with at least one of the following A) and B) being met, light entering the substrate from below is transmitted through the substrate and penetrates into the micro-chambers' interiors, and light entering the substrate from the micro-chambers' interiors is transmitted through the substrate and escapes toward below the substrate. A) The electrode is provided on an inner side surface of each of the micro-chambers. B) The electrode is transparent and provided on a bottom surface of each of the micro-chambers.
摘要:
An apparatus and system for contacting a mobile elongate solid phase, e.g. a ribbon with a flowing fluid phase, and a method for using the same in, for example solid phase synthesis. A particular apparatus comprises (i) a conduit which is of circular or non-circular transverse cross section and which defines a lumen to contain both the flowing fluid phase and the mobile elongate solid phase; (ii) fluid phase ports in communication with the lumen to allow the fluid phase to enter the lumen, flow through it and exit it; and (iii) solid phase ports in communication with the lumen to allow the mobile solid phase to enter the lumen, move through it and exit it, the apparatus being adapted to prevent fluid egress from its interior through the solid phase ports.Also provided is a continuous process for synthesising and screening molecules, comprising passing an elongate solid phase through successive treatment stations where different stages of a solid phase synthesis are performed, and screening the synthesised molecules for activity.
摘要:
A material film is formed as a thin film having a thickness of 1 μm on a surface of a glass substrate. A plurality of micro-chambers having a diameter of 5 μm are formed in the material film to be arrayed at a high density. The respective chambers filled with an aqueous test solution have openings that are liquid-sealed by a lipid bilayer membrane to provide a high-density micro-chamber array. Significant downsizing of the micro-chambers enhances a change in concentration by a reaction of one biomolecule in the chamber and thereby increases the detection sensitivity. In the configuration that a large number of micro-chambers are formed at a high density, even in the case of an extremely slow reaction of the biomolecule, the reaction proceeds in any of the chambers. This configuration accordingly enables the reaction of the biomolecule to be detected with high sensitivity.
摘要:
An apparatus and system for contacting a mobile elongate solid phase, e.g. a ribbon with a flowing fluid phase, and a method for using the same in, for example solid phase synthesis. A particular apparatus comprises (i) a conduit which is of circular or non-circular transverse cross section and which defines a lumen to contain both the flowing fluid phase and the mobile elongate solid phase; (ii) fluid phase ports in communication with the lumen to allow the fluid phase to enter the lumen, flow through it and exit it; and (iii) solid phase ports in communication with the lumen to allow the mobile solid phase to enter the lumen, move through it and exit it, the apparatus being adapted to prevent fluid egress from its interior through the solid phase ports.Also provided is a continuous process for synthesising and screening molecules, comprising passing an elongate solid phase through successive treatment stations where different stages of a solid phase synthesis are performed, and screening the synthesised molecules for activity.
摘要:
Described is a Reactor assembly for analysing the effluent stream from at least one flownullthrough reactor, comprising: nullat least one flow-through reactor for performing at least one chemical reaction, the reactor comprising nulla reaction chamber (1), comprising a reaction zone (2), the reaction chamber being connected to nullat least one reactor inlet (3) for at least one reactant, 10 upstream of the reaction zone, nullat least one reactor outlet (4) for the effluent stream from the reaction zone, downstream of the reaction zone, nullat least one analyser (5) for subjecting the effluent stream to an analysing procedure, each reactor outlet being 15 connected to at least one analyser by an effluent conduit (6), wherein the reactor assembly further comprises nullat least one dilution fluid supply means (10), for adding at least one dilution fluid to the effluent stream, downstream of the reaction zone, and a process for analysing a fluid effluent stream from a flow-through reactor comprising a reaction chamber having a reaction zone, comprising the steps of: A) diluting at least 30 w/w % and/or at least 30 v/v % effluent stream downstream of the reaction zone with at least one 25 dilution fluid, B) transferring at least a portion of the diluted effluent stream obtained in step A) to at least one analyser, C) subjecting the transferred effluent stream to an analysis procedure.
摘要:
The system comprises a tubular vessel allowing a flow of fluid through said vessel and an assembly for housing said vessel. The assembly comprises a base block having a first channel formed therein for removably housing the vessel, said first channel having first and second channel openings allowing introduction and/or discharge of a fluid into and from said first channel. The assembly also comprises a cover element having a bottom surface being releasably attachable to the first face of the base block. A first sealing element is provided between the first face of the base block and the bottom surface of the cover element, the first sealing element surrounding the first channel opening completely, and thereby sealing gastight around said first channel opening between the cover element and the base block. The system further comprises a second sealing element located in the first channel, said second sealing element sealing gastight against the inside of the first channel and the outside of the vessel.