Eppendorf Ag

Other

Peter Scheffler

Kurt Harnack

Wolfgang Goemann-Thoss

Sven Eikelmann

Helmut Knofe

Christoph Jolie

Helmut Knoffe

Reinhold Götz

Werner Lurz

Jens-Peter Kroog

Jens-Peters Kroog

Thomas Grazianski

Wilfried Mauser

Peter Koch

Werner Flachsbarth

R&uuml;diger Brust

Andreas Bombach

Reinhold Goetz

Helmut W Knofe

Cuvette, comprising at least one measuring area on each one of two arms that are pivotally connected to each other such that from a swung-apart condition, they can be swung together into a measuring position in which the two measuring areas have a distance for positioning a sample between the measuring areas, and means for positioning the two arms in a measuring position in a cuvette shaft of an optical measuring device with a sample between the two measuring areas in a beam path of the optical measuring device that crosses the cuvette shaft.

Method for optically examining small amounts of liquid using a cuvette and insert parts that form a column of liquid between two measuring areas

Cuvette with pivotally connected arms

Cuvette with insert and adapter

Optical sensor system on a device for the treatment of liquids with at least one device for the projecting of light in the direction of an optical axis onto at least one illumination area in the space, an adjustment device for the adjustment of the relative position of the at least one illumination area and a boundary surface in a direction diagonal to the optical axis, an adjustment device for the adjustment of the relative position of the at least one illumination area and the boundary surface in the direction of the optical axis, a control device for controlling the adjustment devices, such that they simultaneously adjust the relative position of the at least one illumination area and the boundary surface diagonal to the at least one device for the imaging of the at least one illumination area during the adjustment of the relative position onto at least one photodetector and an evaluation device connected with the at least one photodetector for the evaluation of the at least one measurement signal.

Optical sensor system on a device for the treatment of liquids

An optical sensor system on an apparatus for treating liquids, with a device for projecting light to at least one illumination position in space, at least one device for imaging the at least one illumination position on at least one photo detector in order to supply a measurement signal depending on the received light, wherein the device for projecting is a device for simultaneously projecting light to plural illumination positions and/or the device for projecting is a device for simultaneously projecting light under different angles to the same illumination position, and/or plural photo detectors are existent, and an analysing unit connected to the at least one photo detector for analysing the at least one measurement signal.

Optical sensor system on an apparatus for treating liquids

An apparatus for positioning a cuvette in an optical beam path of an optical measuring instrument, with a shaft for axially inserting a cuvette, and means for pressing a cuvette against at least one wall surface of the shaft, which comprise at least one arrangement of a magnet, stationarily arranged with respect to the shaft, and a magnet movable with respect to the same, which are oriented such that the movable magnet tends to occupy a certain position with respect to the stationary magnet, in which the movable magnet engages at least partially into the shaft.

Apparatus for positioning a cuvette in an optical beam path of an optical measuring instrument

An apparatus for drying microtitration filter tray cavities and filters configured therein using a flow of gas, the cavities each comprising an upper and a lower aperture and the microtitration filter tray being mounted on a chamber designed for the vacuum filtration of microtitration filter trays in a manner that a vacuum can be applied to the lower apertures of the cavities receiving the filters, and includes a heat exchanger which can be mounted on and later removed from the microtitration filter tray and can be heated and comprises at least one inlet aperture and at least one outlet aperture between which a flow of gas may move through the heat exchanger, the heat exchanger being designed to heat the gas flow and to guide it onto the upper cavity apertures, the gas flow being generated by a vacuum pump communicating with the vacuum chamber.

Method to dry microtitration filter tray cavities and received filters therein

Suction device to draw off sample liquids from filtration vessels to recipient vessels including an evacuable chamber, which has an upper opening with a continues circular sealing surface for marginally supporting at least one filtration vessel mountable in place from top and may be opened for the insertion and removal of at least one recipient vessel, and including a support parallel to the sealing surface to enable the recipient vessel to be positioned in the chamber below the filtration vessel wherein the upper opening including the circular sealing surface is disposed on a first chamber portion adapted to be displaced with regard to a stationarily disposed, second chamber portion including the support where the first and second chamber portions complement each other in a charging position to form a sealed chamber and the first chamber portion releases the support, in an access position displaced away from the second chamber portion, for the insertion and removal of the recipient vessel.

Suction device

A process for mixing a liquid sample to be analyzed with periodic air movements includes the steps of placing the sample in a sample container and alternately directing air jets onto different regions of the surface of the sample, wherein the air jets displace the surface regions and produce turbulence in the sample. An apparatus is provided for practicing the process.

Process and apparatus for mixing a liquid sample to be analyzed

Growing community of inventors

Hamburg, Germany

Peter Scheffler