Abstract: The present invention relates to computer implemented method performed by a computer (110) configured to calibrate an apparatus for measuring the absorbance of light of a substance (131) for a chromatography system (100), the apparatus (131) comprising a conduit (C) for enabling a fluid to be measured, a light emitter (LE) configured to emit light along an optical path (OP) to a light sensor (S) configured to measure the emitted light, the optical path intersecting the conduit (C), a rotating disc (D) having one or more optical filters, each of the one or more optical filters is arranged with its center passing through the optical path (OP) when rotating, an actuator configured to rotate the disc (D) dependent on a control signal, to the method comprising controlling rotation of (710) the disc (D) to a first position where a first filter, of the one or more optical filters, intersects the optical path (OP) at a first point (P1), measuring (720) a first light absorption value, controlling rotation of (730) the

Abstract: A chromatography device (201; 201?) comprising: – at least one chromatography material unit (203), wherein said chromatography material unit comprises a convection-based chromatography material and is of a substantially rectangular shape having a length (L) and a width (W); - at least one fluid distribution system (207) which is configured to distribute fluid into and out from the at least one chromatography material unit (203), wherein said fluid distribution system (207) comprises a distribution device (209a) and a collection device (209b) between which said chromatography material unit (203) is sandwiched, wherein said distribution device (209a) and said collection device (209b) each comprises a number of parallel grooves (255) for distribution and collection respectively of a fluid to be passed through the chromatography material unit (203), wherein said parallel grooves are reaching over substantially the whole length (L) of the chromatography material unit (203) and are distributed over substantially th

Abstract: The invention discloses a method for individually assessing the cleanness of at least one of an upper (2) and a lower (3) bed support in a process column (1). The method comprises the steps of: a) providing a process column (1) comprising an upper (2) and a lower (3) bed support, a column chamber, a movable adaptor (5), an upper outlet (6) and a lower outlet (7); b) conveying liquid through one of the lower (3) and upper (2) bed supports, e.g. by moving the adaptor (5) downwards at a predetermined rate with one of the upper and lower outlets closed and the other open to force liquid through one of the lower and upper bed supports, and; c) measuring the differential pressure over the bed support through which liquid passes.

Abstract: The invention discloses a method for individually assessing the cleanness of at least one of an upper (2) and a lower (3) bed support in a process column (1). The method comprises the steps of: a) providing a process column (1) comprising an upper (2) and a lower (3) bed support, a column chamber, a movable adaptor (5), an upper outlet (6) and a lower outlet (7); b) conveying liquid through one of the lower (3) and upper (2) bed supports, e.g. by moving the adaptor (5) downwards at a predetermined rate with one of the upper and lower outlets closed and the other open to force liquid through one of the lower and upper bed supports, and; c) measuring the differential pressure over the bed support through which liquid passes.

Abstract: A method in a fraction collector for accurate positioning of a dispensing device with respect to wells of a micro plate in which prior to the dispensing a sensing device is moved over the micro plate the sensing device being able to detect the number of walls between the wells in the rows and columns of the micro plate.

Abstract: In a cassette for test tubes for use e.g. in a fraction collector the test tubes are kept in a fixed position by means of flexible springs arranged on an adjustable hold and release plate, which, when moved to its release position, releases the test tubes.

Abstract: Liquid receptacle with an opening for receiving liquid dispensed at a distance there above, wherein the receptacle comprises a liquid receiving member arranged in the vicinity of the opening and at an angle with respect to the motion of dispensed liquid to receive and direct dispensed liquid into the receptacle.

Abstract: A method in a fraction collector for accurate positioning of a dispensing device with respect to wells of a micro plate in which prior to the dispensing a sensing device is moved over the micro plate the sensing device being able to detect the number of walls between the wells in the rows and columns of the micro plate.

Abstract: In a cassette for test tubes for use e.g. in a fraction collector the test tubes are kept in a fixed position by means of holding means arranged on an adjustable hold and release plate, which, when moved to its release position, releases said test tubes.

Abstract: A method for increasing the yield of functional microchannel structures per microfluidic device in the manufacturing of microfluidic devices each of which comprises a plurality of enclosed microchannel structures, said manufacturing comprising the manufacture of a microfluidic device which comprises enclosed microchannel structures by joining a substrate surface I of a first generally planar plastic substrate I to a substrate surface II of a second generally planar substrate II via a bonding material.

Abstract: A method for increasing the yield of functional microchannel structures per microfluidic device in the manufacturing of microfluidic devices each of which comprises a plurality of enclosed microchannel structures, said manufacturing comprising the manufacture of a microfluidic device which comprises enclosed microchannel structures by joining a substrate surface I of a first generally planar plastic substrate I to a substrate surface II of a second generally planar substrate II via a bonding material.

Abstract: A silicon-based carrier matrix having a high ratio of surface area to volume is intended for use in integrated microanalysis systems. The carrier matrix comprises at least one layer of microporous silicon on a body of monocrystalline silicon. A method for producing the carrier matrix comprises electrochemical etching of a body of monocrystalline silicon, thereby to form at least one layer of microporous silicon on this body. The use of the carrier matrix for chemical sensors in integrated microanalysis systems, as well as in various sorts of chromatography, is also disclosed.

Abstract: The present invention is for a lighting device by which a controlled light pattern is obtained from a specific light source. The device comprises a light source which emits several parallel light beams. There is one prism (3) for each light beam (8), which passes through the lighting device. All of the prisms are integrated parts of a common disc. Preferrably the light source comprises several light emitting diodes (1) each emitting one light beam. The prisms are suitably made as straight, circular cylinders, at least those parts thereof which protrude from the common disc. The oblique surface may be freely varied at both its angle at the axis of the cylinder and direction whereby the direction of the corresponding light beam may be controlled.

Abstract: A passive or dynamic venting system for a frontloading dishwasher is located within the dishwasher door and includes a plate-shaped valve which closes off a valve port in the inner liner or face of the door; the valve is moved by a linear actuator along a path of closing and opening that is perpendicular to the plane of the door. In the dynamic system, a cross-flow type blower is also located within the door.

Abstract: A device for simulating a telephone line connection between a sending unit and a receiving unit, each said unit two devices, each device having a telephone line connector. The inventive device generates a tone signal corresponding to a telephone calling tone when the sending unit outputs a signal indicating a desire to transmit data. The tone signal lasts for a predetermined amount of time sufficient to inform the sending unit that it may begin transmission of the data. A direct communication path is automatically established between the sending and receiving units connected to the device. The sending and receiving units are continuously provided with a line voltage simulating a conventional telephone line voltage, thus maintaining the communication path in an active state during the transmission.