Abstract: A method for the disinfection of climatic cabinets in particular is provided. The method comprises the following steps: generating a disinfecting hot atmosphere in the space to be disinfected by supplying heat and evaporating water in a heating-up phase; when a temperature of at least 95±5° C.

Abstract: An adapter for taking up a sample container and for use in a laboratory centrifuge rotor, the adapter including a closed end, an opened end and closure assembly that releasably seals the opened end. The closed end and the opened end can be of a certain diameter. The adapter can also be a certain shape. The closure assembly can also include a handle, flange, a hold down ring, a sealing ring and bottom support for the sealing ring, hold down ring, flange and handle.

Abstract: The present invention provides a pump device 50 which is usable to dilute a sample 52 before analysis. A first pump 54 pumps the sample to a mixing region 58 where it mixes with a diluent 66. A second pump 64 pumps the diluted sample to the analysis instrument. The flow of the diluent to the mixer is equal to the difference of the flow of the sample to the mixer and the flow of the diluted sample to the instrument. Pumps 54 and 64 are independently controllable by a controller unit which is arranged so that data from the instrument can be used to determine the dilution factor of the sample. Thus, the controller can control this dilution factor in real time, upon receipt of such data from the instrument, by change either one of (or both) the pump's flow rate.

Abstract: In an energy dispersive spectrometer wherein event (particle/photon) detection is performed by counting events spaced by greater than a shaping time, events which are spaced by less than the shaping time are also collected and counted. These “combined events” are treated similarly to “single events” which are spaced by greater than the shaping time, and can be used to generate combined-event spectra for comparison and/or use with the conventional single-event spectra. The combined-event spectra can be compared to the single-event spectra to provide an indication of data quality; can be subtracted from the single-event spectra to remove artifacts, and/or can be deconvolved into a single-event spectrum to increase the resolution of the single-event spectrum.

Abstract: The invention relates to a centrifuge with a drive head which can be connected with a drive, a rotor which can detachably be mounted on the drive head, at least one connection element with which the drive head can be connected in a torsion-proof manner with the rotor, and at least one coupling element which is attached to the drive head and is able to exert an axial force on the rotor in such a way that the rotor can be fixed axially, with the axial force increasing with the rising rotational speed of the drive head, with the coupling element on the rotor transmitting the axial force by means of a ramp surface which is inclined at an angle (?) relative to the horizontal line in a range of more than 0° to 15°. Secure locking of the rotor during standstill and high speeds can thus be achieved.

Abstract: The invention relates to a two-phase electronic pipette, in which the piston can be moved from the basic position to the lower position and in which the distance between basic position and lower position can be changed.

Abstract: Climate control unit with an interior section containing a storage space and with a closable access opening to the storage section whereby at least one part of the interior section is separated and sealed against the rest of the interior section thus forming a separate germ-proof section. The division takes place at least in part by a membrane that is permeable for water vapor and gas but impermeable for microorganisms.

Abstract: Climate control unit with an interior section containing a storage space and with a closable access opening to the storage section whereby at least one part of the interior section is separated and sealed against the rest of the interior section thus forming a separate germ-proof section. The division takes place at least in part by a membrane that is permeable for water vapor and gas but impermeable for microorganisms.

Abstract: The present invention relates to a method for injecting a sample (i.e. a material to be analyzed that may be dissolved in a solvent) in a vaporization chamber or in a pre-column or a gas chromatograper, this method implying separately injecting a co-solvent, with the co-solvent being injected in advance of the sample and/or in a point in the vaporization chamber other than the sample injection point.

Abstract: A mixing bin for the blending of materials (e.g., pharmaceuticals, foodstuffs, etc.) bears a spectrometer which monitors the characteristics of the material being tumbled within the bin interior to thereby obtain an indication of the degree to which the material is mixed. An accelerometer also rides on the mixing bin with the spectrometer, and it monitors the position of the mixing bin as it rotates. The accelerometer measurements can then be used to trigger the taking and/or recordation of spectrometer measurements at times during which the material within the bin falls against the spectrometer's input window, thereby promoting greater accuracy in spectrometer measurements, and/or at the same bin position, thereby promoting greater uniformity between spectrometer measurements.

Abstract: The invention relates to a rotor for laboratory centrifuges which is designed for accommodating at least one centrifugation container, and an adapter for accommodating a sample vessel and for use in a laboratory centrifuge rotor. The rotor has at least one hold-down element by which the at least one centrifugation container is held in the rotor and protected from axial displacement. In addition, a contact pressure may be produced on the at least one centrifugation container on the rotor.

Abstract: The present invention relates to a safety workbench having a working inner chamber enclosed by a housing, whose bottom terminus is formed by a floor trough and which is accessible on a housing front side via a work opening closable using an adjustable front pane. The floor trough is implemented as double-walled and has an internal and an external wall, which enclose an intermediate chamber, which may be placed under vacuum, between them, at least one of the walls having at least one opening which is connected to means for generating the partial vacuum.

Abstract: The present invention relates to a rotor chamber for a centrifuge, in particular an air-cooled laboratory centrifuge, having a chamber wall, comprising an inner side facing toward the chamber interior, the chamber interior being implemented to receive a centrifuge rotor, and an outer side facing away from the chamber interior, and having a sound barrier which is implemented to reduce the sound emitted from the rotor chamber, which comprises a multilayer damping lining. The present invention also relates to a centrifuge having such a rotor chamber, and methods for reducing the sound emanating from the rotor chamber of a centrifuge, in particular an air-cooled laboratory centrifuge.

Abstract: A mounting means is provided for mounting a device comprising at least one mounting shield, a pivot bearing arranged in the mounting shield and a rotor mounted perpendicularly in the pivot bearing, an axis of rotation of the rotor being oriented substantially perpendicularly when the device is mounted on the mounting means, and the mounting means having resilient properties. In one embodiment, the resilient properties of the mounting means are direction-dependent, in particular orthotropic. As a consequence of the direction-dependent resilient properties of the mounting means, oscillations excited by a rotary movement of the rotor strike a mounting, the pivot point of which does not coincide with the axis of rotation of the rotor, but is set apart therefrom. This makes it much more difficult to excite the mounting means to form unstable oscillations, so that such oscillations are effectively damped.

Abstract: An incubation and dry storage apparatus, especially for samples made of organic material, is provided.

Abstract: An unknown spectrum obtained from infrared or other spectroscopy can be compared to spectra in a reference library to find the best matches. The best match spectra can then each in turn be combined with the reference spectra, with the combinations also being screened for best matches versus the unknown spectrum. These resulting best matches can then also undergo the foregoing combination and comparison steps. The process can repeat in this manner until an appropriate stopping point is reached, for example, when a desired number of best matches are identified, when some predetermined number of iterations has been performed, etc. This methodology is able to return best-match spectra (and combinations of spectra) with far fewer computational steps and greater speed than if all possible combinations of reference spectra are considered.

Abstract: A mounting system allowing rapid removal and replacement of optical components within an instrument includes a base unit connected to the instrument, and a carrier unit which includes an optical component. The carrier unit is magnetically attracted to the base unit, with mounting nubs extending from one of the base and carrier units being received in depressions defined in the other of the units. Preferably, the magnets on the base and carrier units are aligned, and V-groove depressions receive hemispherical surfaces presented by the mounting nubs. When the base and carrier units are generated using precision manufacturing methods, the optical component on the carrier unit can maintain a predefined alignment upon the base unit (and the instrument) with sub-micrometer precision between successive mountings and removals of the carrier unit, thereby avoiding the need to realign the optical component within the instrument every time the carrier unit is removed and replaced.

Abstract: A pipette including a cylinder part having a cylinder and a tip part, which includes a tip channel connected to the cylinder and a movable piston tightly fit within the cylinder for aspirating liquid into and removing liquid from the tip container attached to the cylinder. In the pipette at least the tip part is made of an elastic material, such as rubber. The tip container can thus be easily and reliably fixed to and removed from the tip container.

Abstract: The invention relates to a swing-out unit for a centrifuge, with the swing-out unit comprising sample vessel recesses and being insertable in a centrifuge rotor head to be swivelable about a swing-out axis, with the axes of at least two sample vessel recesses being arranged in a skewed manner with respect to one another. As a result, more sample vessels can be inserted in a swing-out unit than was previously possible with limited overall space.

Abstract: The invention relates to a centrifuge cup, which has a container and a cover. The cover has a lever including a guide element in each case on opposing edge areas thereof. The guide elements are able to be introduced into an associated guide path of the container by pivoting the lever. The guide elements are implemented in such a way that in a closed state of the cover with the container, a clamping force (F) having vertical force component (Fy) and horizontal force component (Fx) is provided at a contact point or a contact line of the guide elements with the particular associated guide path.