Abstract: A pipette tip configured to fit on a mounting shaft that includes outwardly circumferentially extending locking lobes over which the pipette tip collar is mounted. When the pipette tip is fully mounted on the mounting shaft, a locking ring on the inside surface of the tip collar engages the lobes to provide an over-center engagement. The pipette tip includes a circular cantilever sealing ring that seals laterally against the mounting shaft when the tip is fully mounted. The circular cantilever sealing ring has an annular wall surrounded by a gap. The annular wall has an inside surface that slants inward to provide a lateral interference fit with the mounting shaft. The annular wall bends radially outward towards the gap, rather than stretch, when the tip is mounted on the mounting shaft thereby reducing require insertion force.

Abstract: A pipette tip rack system includes a disposable refill pack and a reusable base. After use, the disposable refill pack can be disassembled, and the components can be stacked or nested for space saving storage prior to disposal or recycling. The pipette tips in the disposable refill pack are configured to fit on a mounting shaft that includes outwardly circumferentially extending locking lobes over which the pipette tip collar is mounted. The pipette tip includes a circular cantilever sealing ring that seals laterally against the mounting shaft when the tip is fully mounted. The circular cantilever sealing ring has an annular wall surrounded by a gap. The annular wall has an inside surface that slants inward to provide a lateral interference fit with the mounting shaft. The annular wall bends radially outward towards the gap, rather than stretching, when the tip is mounted on the mounting shaft thereby reducing require insertion force.

Abstract: A dispenser cassette is shown and described for attachment to a peristaltic pump that has a first cartridge, second cartridge, and tubes, which are accommodated in the dispenser cassette such that both ends of the tubes are each inserted into one of the cartridges. According to the invention, the two cartridges are connected to one another by an elastic connector.

Abstract: Pipetting containers, such as reservoirs, reservoir liners, microplates, PCR plates, microtubes and PCR tubes, include anti-vacuum channels on the bottom wall of the receptacle to prevent a pipette tip vacuum engaging the wall during aspiration. The groupings of anti-vacuum channels are located on the bottom surface facing upward into the basin that holds liquid samples or reagents. The anti-vacuum channels also lower the required working volume for pipetting and reduce liquid waste.

Abstract: The invention relates to a pipette with a first opening for receiving and removing a liquid to be dispensed and a second opening which lies opposite the first opening. According to the invention, the pipette comprises a material which causes a wavelength shift between the electromagnetic radiation absorbed by the pipette and the electromagnetic radiation emitted by the pipette. The invention additionally relates to a pipette aid for receiving a pipette for dispensing a liquid. According to the invention, the pipette aid comprises both a data storage device, in which a database with reference measurement data is stored, as well as two radiation sources and a radiation detector, wherein the two radiation sources emit electromagnetic radiation with different wavelengths, and the radiation detector detects the wavelength of the received electromagnetic radiation.

Abstract: A pipette tip rack system includes a thermoformed clamshell tip container and a dispenser for the clamshell tip container. The tip dispenser includes a base for holding the clamshell container, cover and a lifting mechanism for lifting the lid of the tip container and the cover when a latch on the base is released. The tip dispenser is configured to facilitate one-touch operation so that a laboratory work may hold a pipette in the other hand while using the dispenser, and conveniently open and close the dispenser cover to reduce the risk of contamination. The dispenser can be used without the thermoformed tip container as well.

Abstract: A pipette tip rack system includes a thermoformed clamshell tip container and a dispenser for the clamshell tip container. The tip dispenser includes a base for holding the clamshell container, cover and a lifting mechanism for lifting the lid of the tip container and the cover when a latch on the base is released. The tip dispenser is configured to facilitate one-touch operation so that a laboratory work may hold a pipette in the other hand while using the dispenser, and conveniently open and close the dispenser cover to reduce the risk of contamination. The dispenser can be used without the thermoformed tip container as well.

Abstract: A device for receiving, stacking, and removing microplates is presented and described. The device comprises a tower for stacking the microplates, wherein a microplate comprises a container and, optionally, a lid. There is a retaining device at the lower end of the tower, which has a first retaining tool and a second retaining tool, and preferably partially encompasses a microplate. The first retaining tool is designed to hold a microplate in a form-fitting manner. The second retaining tool is designed to fix a container in the microplate in place in a frictional manner. The first retaining tool is above the second retaining tool in the stacking direction. A system that comprises the device described above, a dispenser device, and a transport device, is also disclosed. The dispenser device is used to fill microplates, and the transport device is used to add and remove microplates to and from the device.

Abstract: A dispenser cassette is shown and described for attachment to a peristaltic pump that has a first cartridge, second cartridge, and tubes, which are accommodated in the dispenser cassette such that both ends of the tubes are each inserted into one of the cartridges. According to the invention, the two cartridges are connected to one another by an elastic connector.

Abstract: Disclosed and described is a hose for attachment to a dispensing cartridge for placement in a peristaltic pump, for stretching over a rotor of the peristaltic pump, and for conveying a medium by external mechanical deformation of the hose. The hose has a length of preferably 20 mm to 200 mm, an internal cross-sectional area of 0.07 to 7.07 mm2, and a wall thickness of 0.3 mm to 2.2 mm. Thickenings are formed at both ends of the hose and the distance between the thickenings is 40 mm to 100 mm. According to the invention, it is provided that the hose is manufactured by an injection molding process, the inner cross-sectional area has a tolerance of at most ±33%, and the hose is suitable for closing completely when stretched over the rotor with a tension force of 1 to 10 N.

Abstract: Pipetting containers, such as reservoirs, reservoir liners, microplates, PCR plates, microtubes and PCR tubes, include anti-vacuum channels on the bottom wall of the receptacle to prevent a pipette tip vacuum engaging the wall during aspiration. The groupings of anti-vacuum channels are located on the bottom surface facing upward into the basin that holds liquid samples or reagents. The anti-vacuum channels also lower the required working volume for pipetting and reduce liquid waste.

Abstract: A sample distribution system 1 has a regulator 4 for receiving a pipetting unit 2 that has at least one exchangeable pipette tip 3, wherein the regulator 4 is configured to change the position of the pipetting unit 2 in relation to a base plate 5, and to detect the presence or absence of pipette tips 3 with a sensor unit 12. According to the invention, the sensor unit 12 is a photoelectric sensor, in particular a reflection photoelectric sensor, with a detection range. The sensor unit 12 and the pipetting unit 2 can also move in relation to one another, in order to determine the presence of a pipette tip 3, if the pipette tip is in the detection range of the sensor unit 12.

Abstract: A pipette tip rack system includes a thermoformed clamshell tip container and a dispenser for the clamshell tip container. The tip dispenser includes a base for holding the clamshell container, cover and a lifting mechanism for lifting the lid of the tip container and the cover when a latch on the base is released. The tip dispenser is configured to facilitate one-touch operation so that a laboratory work may hold a pipette in the other hand while using the dispenser, and conveniently open and close the dispenser cover to reduce the risk of contamination. The dispenser can be used without the thermoformed tip container as well.

Abstract: Pipetting containers, such as reservoirs, reservoir liners, microplates, PCR plates, microtubes and PCR tubes, include anti-vacuum channels on the bottom wall of the receptacle to prevent a pipette tip vacuum engaging the wall during aspiration. The groupings of anti-vacuum channels are located on the bottom surface facing upward into the basin that holds liquid samples or reagents. The anti-vacuum channels also lower the required working volume for pipetting and reduce liquid waste.