Other

Hemocue Ab

Ab Leo

Aktiebolaget Leo

Migrata UK Ltd.

Jan E Lilja

Sven-Erik L Nilsson

Sven E Nilsson

Bertil Nilsson

Anders Williamsson

Johnny Svensson

Lars Jansson

Stefan Wahlqvist

Ove B Ferno

Annika Eriksson

A method for hemoglobin determination is described which includes the steps of introducing a sample of undiluted whole blood by capillary action into a disposable microcuvette having at least one cavity for receiving the sample. The cavity includes a dry essentially non-hygroscopic hemolysing agent, which is dissolved by the blood, hemolyses the red blood cells and releases the haemoglobin contained in the blood cells. A first absorption measurement at a wavelength range 490-520 nm is then performed directly on the sample in the microcuvette, and a second absorption measurement is performed to compensate for background interference.

Analysis method and cuvette therefor

A method is provided for monitoring the cooking temperature of meat patties. More specifically, a method is provided for monitoring the cooking temperature of meat patties by determining the concentration of colored compounds, such as myoglobin, in meat juice.

Method for determining the concentration of colored compounds in meat

The present invention is related to an integral capillary microcuvette comprising a body member and a cavity including a measuring zone within the body member. The cavity is defined by two opposite, substantially parallel inner surfaces of the body member and includes an outer peripheral edge comprising a sample inlet and an inner peripheral zone having a channel of higher capillary force than the measuring zone. The channel extends around the entire inner peripheral zone with ends of the channel communicating with the atmosphere at the exterior of the microcuvette.

Capillary microcuvette

The present invention is a cuvette provided with at least two cavities. The first or inlet cavity takes up fluid by capillary action. The second cavity is a reception cavity which communicates with the first cavity through a first channel. The second cavity preferably is constructed and arranged to not exert a capillary action, although it could be constructed to exert a capillary action. The first channel which is in fluid communication with the first cavity and the second cavity exerts a non-capillary and non-spontaneous fluid transporting function that is operative only under an external influence, such as by application of a centrifugal force on the cuvette. The cuvette is well suited for a variety of analyses, particularly upon whole blood.

Cuvette

Device for rapidly performing a sedimentation-rate test

Method of analysis, reagent composition and use thereof for glucose

Cuvette for an optical analysis of liquids

An apparatus for performing mixing in thin liquid layers containing a suspension of a multiplicity of movable particles of magnetic material. The apparatus includes at least two magnets or magnet systems, of which at least one is an electromagnet. the magnets or magnet systems are arranged in order to provide at least one slit for receiving at least one support containing the thin liquid layer, wherein the magnetic particles are present. When the liquid layer in the support is inserted in the slit, the thin layer will be subjected to the combined magnetic field orginating from the two magnets or magnet systems. The apparatus has a driving source for the electromagnet(s), including a timing device, and a current source. The support device, which fixedly supports the thin liquid layer containing a multiplicity of magnetic particles, is arranged between the magnets in such a manner that the thin layer is subjected to the combined magnetic field of the magnets, which magnetic field alternatingly concentrates and fades out. The invention also provides a method of performing mixing in thin liquid layers.

Mixing apparatus and method

Device for self-administration of physiologically active substances,

Novel tobacco compositions which when subjected to an elevated temperature below the combustion temperature the tobacco liberates essentially pure nicotine. The invention also includes a method for liberating nicotine from the compositions and a device for carrying out the method.

Tobacco compositions, method and device for releasing essentially pure

Novel tobacco compositions which--when subjected to an elevated temperature below the combustion temperature the tobacco--liberates essentially pure nicotine.

Novel tobacco compositions which, when subjected to an elevated temperature below the combustion temperature of the tobacco, liberates essentially pure nicotine. The invention also includes a method for liberating nicotine from the compositions and a device for carrying out the method.

Disposable cuvette for essentially simultaneous sampling of a fluid and analyzing the sample. The new cuvette comprises a body member having at least one cavity defined by surrounding walls, into which cavity the sample is permitted to enter by capillary force through an inlet communicating said cavity with the exterior of the body member. According to the invention, the cuvette is characterized in that at least a portion of the walls facing the cavity consists of a semipermeable membrane, optionally with an integrated electrode and/or sensor system, and that at least one reagent or reagent system is incorporated in the cuvette.

Growing community of inventors

Helsingborg, Sweden

Jan E Lilja