Eppendorf Ag

Eppendorf-netheler-hinz Gmbh

Other

Kurt Harnack

Peter Scheffler

Wolfgang Goemann-Thoss

Sven Eikelmann

Helmut Knofe

Rainer Treptow

Christoph Jolie

Helmut Knoffe

Reinhold Götz

Jan Kraack

Reiner Spolaczyk

Jens-Peter Kroog

Kirsten Schicke

Jens-Peters Kroog

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 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

Optical measuring system for determining the concentration, particularly of turbid liquid samples, comprising a measuring volume for taking up the liquid samples to be measured, a plurality of several photometric channels, each comprising a light source and a light sensor on opposite sides of the sample volume aligned on a common optical axis, the optical axes thereof being disposed under different azimutal angles respective to the sample volume, and an analyzing device which evaluates the concentration of the liquid samples to be measured according to the data provided by the light sensors belonging to a plurality of different photometric channels.

Measuring system for optically determining concentration of turbid liquid samples

A cuvette for the measurement of the absorption of irradiation in liquid samples which at least in the regions of the windows is of a transparent plastic with an inner space which is formed in an essentially box-shaped upper part with an upper opening for filling and removing sample fluid and in an essentially box-shaped lower part which projects downwards from the floor of the upper part and which comprises a smaller cross section than the upper part, of maximally 200 &mgr;l content capacity, two pairs of planar-parallel windows in the lower part which lie opposite one another, wherein the distance a of the one pair is different to the distance b of the windows of the other pair in order to make available differing layer thickness of the sample fluid for the measurement and with four feet which are flush with the four corners of the upper part and which extend away from the upper part at least until up to the level of a floor of the lower part.

Cuvette

Hand apparatus for pipetting and photometrically evaluating samples which comprise a pipetting means, an integrated photometer and a replaceable pipette tip connected to said pipetting means, said pipette tip being defined as a cell and provided within the optical path of the photometer for photometrically evaluating absorbed samples.

System for pipetting and photometrically evaluating samples

Growing community of inventors

Tangstedt, Germany

Kurt Harnack