Roche Diagnostics Operations, Inc.

International Standard Electric Corporation

Nokia Graetz

Roche Molecular Systems, Inc.

Standard Elektrik Lorenz Ag

Volker Gerstle

Rolf Zondler

Gerhard Mauz

Herbert Harttig

Norbert Thiel

Michael Fritz

Juergen Schwab

Otto Lederle

Manfred Augstein

Volker Unkrig

Joachim Steinbiss

Andreas Rauscher

Heinz Beckerle

A device for sampling liquid samples is provided comprising a capillary-active channel, a sampling site, and a determination site. The capillary-active channel is configured for transporting a sample from the sampling site to the determination site. The capillary-active channel is substantially formed by a carrier, a cover and an intermediate layer located between the carrier and cover. The carrier protrudes beyond the cover in the area of the sampling site. The intermediate layer is displaced towards the back in the direction of the determination site in the area of the sampling site so that the carrier as well as the cover protrude beyond the intermediate layer. The device allows sample to be applied from above onto the exposed area of the carrier in the area of the sampling site and also allows sample to be applied from the side.

Sampling device for liquid samples

The present invention is directed to a pipette comprising mounting surfaces of different diameters for the use of disposable tips of different size, which permits easy discarding of the tips after use. Such pipettes can be used in manual and automatic pipetting systems.

Pipette for disposable tips of different size

A system for simple nucleic acid analysis is described in which the amplification space contains at least a part of the binding space. An additional improvement is achieved by the design of the binding or/and amplification space which is optionally surrounded by a heatable metal layer.

System for simple nucleic acid analysis

During the formation of a black-matrix layer on the inside surface of a faceplate of a color picture tube, the development of the photoresist coating takes place in an atmosphere with a relative humidity of between about 80-100% and at a temperature of between about 30.degree.-50.degree. C.

Process and apparatus for producing a black matrix layer

In a color-picture tube, the conductive coating on the inside of the cone is a suspension without organic constituents. The conductive coating on the inside of the neck, which is contiguous to the conductive coating on the inside of the cone, consists of the aforementioned suspension with an addition of organic constituents. A sharp and scratch-resistant boundary between the conductive coating in the neck and the uncoated area of the neck is thus obtained.

Color picture tube having internal conductive coatings

Color picture tube

To a suspension of rare-earth phosphors and sulfidic or selenidic phosphors there is added about 1 to 2% of the amount of hypohalogenite which would be necessary to convert the entire sulfidic or selenidic chalcogenide phosphor into a soluble sulfate and/or selenate. When acidifying the dispersion to which hypohalgenite has been added, to a pH value of preferably between 1.5 and 2, a sedimentation of elementary sulphur and/or selenium forms and becomes attached to the sulfidic and/or selenidic phosphor solids, thus causing these phosphor solids to form sediment. The supernatant suspension containing the rare-earth phosphor is then decanted, and the rare-earth phosphor is reclaimed from the suspension. The disclosed reclaiming process is particularly suitable for decontaminating phosphor mixtures for use in manufacturing color television cathode-ray tubes.

Process for reclaiming rare-earth metallic oxide and/or rare-earth

Method of preparing a phosphor suspension by mixing a photosensitive material, a photosensitizer, and a phosphor for the purpose of forming a photosensitive film. The photosensitizer in the suspension is a chromic-acid solution. With such a phosphor suspension, a firmly adhering, uniform and compact phosphor film can be formed on the screen substrate. In addition, the phosphor areas obtained by this method have very sharp boundaries.

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Lorsch, Germany

Volker Gerstle