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WO/2002/068953A1 |
The invention relates to a method and to a device for detecting fumigants in air samples. The devices can for example be configured as a portable analyzer (10) that has a sound (11) for taking air samples from the soil. Detection means (...
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WO2001029554A9 |
The invention relates to a mass-sensitive sensor comprised of an acoustic surface wave component based on shear waves. The aim of the invention is to design the mass-sensitive sensor of the aforementioned type such that, in the instance ...
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WO/2002/063264A2 |
A resonant sensor for determining structural property changes, in particular for detecting the presence of chemical or biological species, comprises a structure (2) mounted to be capable of resonating and having a cyclically symmetrical ...
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WO/2002/061396A1 |
An oscillator (2) capable of oscillating signals of specified frequencies in dipped state in liquid, comprising a diaphragm of piezoelectric material (9) having a front surface (9a), a rear surface (9b), and a side surface (9c), a first ...
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WO/2002/057603A1 |
The invention relates to a device for metering urea solutions, which allows in particular the level of nitrogen oxide in the exhaust gas stream of an internal combustion engine to be reduced in a reliable manner. According to the inventi...
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WO/2002/055996A1 |
The present invention is directed to a method for determining the surface activity properties of an amphiphilic substance, such as a drug, the method including a step wherein the surface tension of an aqueous solution of the said substan...
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WO2001096834B1 |
A method and apparatus for determining the deposition of organic and inorganic contaminants, such as biofilm, on a coupon is disclosed. The method and apparatus include a coupon suspended from a weight sensor within a reservoir tank. The...
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WO2002031469B1 |
The mass of particulate of an effluent gas (12) flowing in a stack (14) is measured with a mass measurement assembly (16) in which sampling is isokinetically controlled by determining in real-time the molecular weight of the effluent gas...
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WO2001077624B1 |
An apparatus (10) for measuring the mass of a substance includes a sensor (12) having a membrane layer (14), the membrane for receiving the substance thereon, an oscillator device (20) for driving the membrane at a reference resonant fre...
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WO/2002/033403A2 |
A filtration container (1) comprises a container body (2) including a porous filter (4) exhibiting both hydrophilic and oleophobic properties. The container also has a lid (3) which provides a secondary filter for the container (1).
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WO/2002/020838A2 |
A method for the detection of a target nucleic acid in a sample containing a mixture of nucleic acids. The method comprises (a) providing a solid surface; (b) attaching to the solid surface an oligonucleotide probe complementary to a seg...
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WO/2002/018909A2 |
An apparatus and method for determining the viscosity of the circulating blood of a living being over plural shear rates caused by a decreasing pressure differential by monitoring the changing weight of the blood, or the changing level o...
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WO/2002/018908A2 |
An apparatus and method for determining the viscosity of a fluid over plural shear rates caused by a decreasing pressure differential by monitoring the movement of the fluid through a riser tube (R) and a capillary tube (24). The movemen...
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WO/2002/011035A1 |
The present invention is a method and apparatus for increasing the usefulness of visual knowledge in a number of applications. It distills the relationships between characteristics and hypotheses into database form (104), thereby organiz...
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WO/2002/001186A1 |
A method and apparatus for rapidly and accurately determining the fat and oil content of a sample using microwave drying and NMR (36) analysis is disclosed. The method and apparatus incorporate a low mass, porous, hydrophilic and lipophi...
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WO/2001/098751A1 |
The invention concerns a method for determining the surface tension of a comminuted solid based on different experimental measurements and different mathematical equations. Said method uses the principle of capillary rise of a probe liqu...
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WO/2001/073383A1 |
The invention relates to a method and a device for detecting and/or monitoring the level of a medium in a container or for detecting the density of a medium in a container. The aim of the invention is to provide a method and a device whi...
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WO/2001/067083A1 |
This invention is directed to a method and apparatus for measuring the rate of calcium oxalate scale formation in a continuously flowing solution having a pH of from about 2 to about 3 comprising measuring the rate of deposition of calci...
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WO2001034290A9 |
Workstation, apparatuses and methods for the high-throughput synthesis, screening and/or characterization of combinatorial libraries. The invention relates to an array, which permits various high-throughput methods for synthesis, screeni...
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WO/2001/034660A2 |
The invention relates to methods, using radiography, for the analysis of chemical compounds, such as polymers, specialty chemicals, and catalysts. In particular, the methods of the invention provide methods, which may be carried out in a...
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WO/2001/033226A1 |
Sensor system (70) for detecting a target substance in a reference liquid, comprising a measurement cantilever (71) being functionalized by application of a first coating to one of the measurement cantilever's surfaces, whereby this firs...
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WO/2001/031328A1 |
Described is a downhole apparatus for detecting and removing deposits from a surface exposed to wellbore fluids. The apparatus can monitor the rate of deposition and subsequently remove the deposited material. The combination of detectio...
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WO/2001/031329A1 |
Described is an apparatus for detecting and removing deposits from a surface exposed to wellbore fluids. The apparatus can monitor the rate of deposition and subsequently remove the deposited material. The combination of detection appara...
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WO/2001/026138A2 |
An acoustic wave based-chemical sensor utilizing a crystal substrate and a coating of at least two blended materials is disclosed. The blended materials comprise a combination of (a) a high glass transition temperature polymer or a mater...
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WO/2001/020312A2 |
A volatiles analyzer is disclosed that includes a source of microwave radiation that can selectively produce at least one predetermined frequency of microwave radiation. A cavity is in communication with the source. The analyzer includes...
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WO/2001/020274A1 |
The invention is an apparatus and method for obtaining accurate sample weight measurements during sample heating within a heating cavity by substantially reducing the convection currents that disrupt accurate sample weight measurement. T...
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WO/2001/016575A1 |
A biosensor (10) has a hydrogel (30) in a rigid and preferably biocompatible enclosure (20). The hydrogel (30) includes an immobilized GBM such as concanavalin A (Con A) and an immobilized hexose saccharide such as a-D-mannopyranoside. T...
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WO/2001/002858A1 |
The present invention provides a method for the qualitative detection of viral or bacterial antibodies from animal body fluid, and an apparatus for performing the same. The apparatus according to one aspect includes a piezoelectric cryst...
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WO/2001/002831A1 |
The object of the invention is a mehtod for measuring the retention of a substance in a measurement apparatus having at least one chamber (1, 21, 31a, 31b) where the examined substance is mixed. The chamber is defined in at least one dir...
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WO/2000/077488A1 |
A high-temperature balance includes a piezoelectric material, such as langasite (gallium phosphate (Ga PO4), a member of the (Al, Ga) N system), that are stable at high temperatures. The frequency response of the balance is monitored to ...
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WO/2000/075626A1 |
The invention concerns a platform for chemical or biological analysis (102) comprising at least a fixed support (110) and at least a first mobile support (104a) capable of being lined with reagent, the mobile support being linked to the ...
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WO/2000/068679A1 |
The concentration of an analyte in a fluid is measured by a quartz crystal microbalance sensor device (10) in the fluid containing a concentration of the analyte. The sensor device exhibits a resonant frequency representative of the conc...
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WO2000026653A9 |
A dew point sensor includes a micro-cantilever beam formed on a substrate. A cooling device and a temperature sensor are in thermal contact with the micro-cantilever beam and a control circuit is coupled to the micro-cantilever beam, the...
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WO/2000/066266A1 |
The present invention relates to integrated micro-cantilevers, micro-bridges or micro-membranes in micro-liquid handling systems. Such micro-liquid handling systems provide novel detection mechanisms for monitoring the physical, chemical...
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WO/2000/062037A1 |
The present invention relates to a porosimeter that includes scales (1), a device (2) for bringing into contact porous reference samples (3) and porous samples to be analysed (4) having their pores filled with a wetting liquid, and an au...
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WO/2000/058709A1 |
A method for determining a physical or chemical characteristic of a liquid in which a drop of the liquid is located on the surface of a crystal of a quartz crystal microbalance. The liquid is evaporated from said surface while a signal o...
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WO2000026638A9 |
A sensor (Fig 1) for detecting an analyte in a fluid comprising a substrate having a first organic material and a second organic material (21) that has a response to an analyte. The sensor has information storage and processing equipment...
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WO/2000/055613A1 |
The present invention relates to a method for studying changes of chemical-physical behavior of a thin film as a result of a chemical influence and/or reaction, wherein said thin film is placed onto a quartz crystal of a QCM; dissipation...
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WO2000020852A9 |
The present invention provides a class of sensors prepared from regions of conducting organic materials and conducting materials that show an increased sensitivity detection limit for amines. The present class of sensors have application...
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WO/2000/046584A2 |
The mass of particulate matter in a particle laden gas stream (42) is measured using a first mass detector (50A) and a second mass detector (50B). Switching means (48A, 48B, 56) causes the particle laden gas stream and a substantially id...
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WO/2000/042411A1 |
A moisture permeability measuring method comprising the steps of measuring the weight of a specimen in constant temperature and humidity room without taking out the specimen from the constant temperature and humidity room to the atmosphe...
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WO/2000/037936A1 |
The invention concerns a novel laboratory test for assessing the tendency of a gasoline, optionally containing an additive, to cause deposits while the engine is running, comprising the following steps: placing a tube in the oven of a ga...
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WO/2000/032813A1 |
The present invention provides a method and a system for the detection of a target oligonucleotide in a sample. The method comprises, in general, the steps of providing a sensor device having a sensing interface carrying capturing oligon...
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WO/2000/031511A1 |
An apparatus for measuring abradability of a sample comprises a rotating drum with a rough surface and a means for contacting a sample with the rough surface while the drum is rotating. The sample may be caused to rotate relative to the ...
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WO/2000/029828A1 |
The mass of particulate of an effluent gas (12) flowing in a stack (14) is directly measured with a mass measurement assembly (16) supported within the stack. The mass measurement assembly preferably includes an inertial mass measurement...
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WO/2000/026636A1 |
A QCM sensor for detecting and measuring the components of a sample from a change in the main resonance frequency or from a change in the impedance caused when the surfaces of electrodes of a sensor device having electrodes opposed to ea...
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WO/2000/025118A1 |
An analytical apparatus, such as a quartz crystal microbalance, comprising a piezoelectric sensor and an oscillator circuit, coupled to the sensor, to oscillate at a frequency substantially determined by a resonant frequency of the senso...
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WO/2000/016067A1 |
A method and apparatus for measuring volatile content of samples particularly suitable for samples that tend to burn when heated. The method includes the steps of applying microwave radiation at a predetermined power level to a moisture-...
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WO/2000/016091A1 |
A device for detecting chemical substances includes a plurality of sensors arranged in an array. The sensors are connected to respective oscillator circuits which drive the sensors, and the oscillator circuits are coupled to a power mult...
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WO1996035103A9 |
A device and a process for measuring resonant frequency and dissipation factor of a piezoelectric resonator are presented. After exciting the said resonator to oscillation, the driving power to the said oscillator is turned off after whi...
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