Patents
Sitemap › G01 - Measuring; Testing › G01N - Investigating or analysing materials by determining their chemical or physical properties › G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
08/1989
08/23/1989CN2043360U Multifunctional grain detector
08/23/1989CN1034999A Method for determination of bilirubin in solution
08/23/1989CN1034998A Ion-selecting electrode with low output impedance
08/22/1989US4859943 Inspection method using magnetic particles in a liquid carrier in combination with electrical detection means
08/22/1989US4859940 Apparatus for detecting onset of slag entrainment in a molten metal stream
08/22/1989US4859848 Mass spectrometer apparatus
08/22/1989US4859608 Method and apparatus for titrimetric content determination in a chemical solution
08/22/1989US4859606 Method for detecting cations in a test sample utilizing chromogenic cryptahemispherands
08/22/1989US4859538 Novel lipid-protein compositions and articles and methods for their preparation
08/22/1989US4859422 Reagent circuit coupled to depressurization reservoir
08/22/1989US4859307 Electrochemical gas sensor, and method for manufacturing the same
08/22/1989US4859306 Selectively ion-permeable dry electrodes for analyzing selected ions in aqueous solution
08/22/1989US4859305 Electrochemical cell
08/22/1989US4859302 Electroelution of macromolecules
08/22/1989US4859301 Separation of zone formation from electroosmotic impulse in tubular electrophoretic systems
08/22/1989US4858767 Plastic container inspection process
08/22/1989CA1258719A1 Mass spectrometer having magnetic trapping
08/22/1989CA1258611A1 Method of dna sequencing
08/16/1989EP0328380A2 Electrochemical sensors in immunological measurement
08/16/1989EP0328238A1 Crack detector for heated glass panel
08/16/1989EP0328108A2 Electrochemical sensor facilitating repeated measurement
08/16/1989EP0327588A1 High sensitivity optical imaging apparatus.
08/16/1989EP0327545A1 Determination of particle size and electric charge.
08/16/1989EP0189422B1 Electrophoretic technique for separating hemoglobin variants and electrophoretic gel for use therein
08/16/1989CN2042965U Eddy flaw detector for production line
08/16/1989CN2042964U Portable hydrogen ion composite eletrode
08/16/1989CN2042963U Two-point quick chemical analysis universal test pattern
08/16/1989CN2042962U Multifunction electrodialysis apparatus
08/16/1989CN2042961U Electrophoresis instument with scr for short-circuit protecting
08/16/1989CN2042960U Numerical acidometer
08/16/1989CN2042959U Portable multifunction testing device for oil storage tank
08/16/1989CN1034810A Ginseng moisture testing instrument
08/15/1989US4858063 Spiral configuration of electrodes and dielectric material for sensing an environmental property
08/15/1989US4857891 Random-filament, multi-directionally responsive marker for use in electronic article surveillance systems
08/15/1989US4857853 On-line electrostatic defect detector for polyester base
08/15/1989US4857829 Water-soluble oil property detection device
08/15/1989US4857275 Ceramic semiconductor with metallic catalyst
08/15/1989US4857167 Oxygen-stable substituted ferrocene reference electrode
08/15/1989US4857166 Reference electrode
08/15/1989US4857165 Oxygen sensing element and process of manufacturing the same
08/15/1989US4857164 Oxygen analyzer
08/15/1989US4857163 High resolution electrophoretic gel and method for separating serum proteins
08/15/1989US4857152 Pyrolytic graphite edge coated with aminoglycoside and cytochrome c peroxidase
08/15/1989US4856337 Apparatus and method for providing a combined ultrasonic and eddy current inspection of a tube
08/15/1989US4856320 Method and apparatus for measuring physical adsorption of gases based on dielectric measurements
08/15/1989US4856319 Thermally switchable katharometer
08/15/1989CA1258496A1 Insulated noble metal wire and porous membrane as po.sub.2 bioelectrode
08/10/1989WO1989007264A1 Thin film moisture sensing elements and process for the manufacture thereof
08/10/1989WO1989007263A1 Metal oxide electrodes
08/10/1989WO1989007262A1 Film-coated sensor
08/10/1989WO1989007261A1 Apparatus for electrophoretic separation of high-molecular dna in gel
08/10/1989WO1989007260A1 Tanks for vertical electrophoresis
08/10/1989WO1989007259A2 Integrated scanning tunneling microscope
08/10/1989WO1989007258A2 Integrated scanning tunneling microscope
08/10/1989WO1989007256A1 An integrated mass storage device
08/10/1989WO1989007153A1 A method for the determination of bilirubin in solution
08/10/1989WO1989007139A1 A method for immobilizing a polypeptide in a polymer and a membrane produced thereby
08/10/1989DE3842287A1 Heating element control system for oxygen concentration sensors
08/10/1989DE3831399A1 Microprobe for coulometric measurement of the thickness of metallic coatings
08/10/1989DE3802751A1 Desiccant cartridge
08/09/1989EP0327363A2 Separation of large DNA molecules in alternating asymmetric electric fields
08/09/1989EP0327254A1 Measurement apparatus
08/09/1989EP0327089A2 Gas detecting device
08/09/1989EP0327018A2 Enzyme Electrode
08/09/1989EP0245477A4 Capacitive sensor for chemical analysis and measurement.
08/09/1989EP0146605B1 Method and apparatus for measuring the resistivity of metals
08/09/1989EP0111012B1 Ionization type of smoke sensor
08/09/1989CN2042595U Electrolysing cell for platinum phosphate pentoxide
08/08/1989US4855706 Organic liquid detector
08/08/1989US4855678 Apparatus for guiding the sensor holder of a surface testing apparatus
08/08/1989US4855677 Multiple coil eddy current probe and method of flaw detection
08/08/1989US4855676 Ferromagnetic eddy current probe having transmit and receive coil assemblies
08/08/1989US4855667 Parallel plate dielectric analyzer
08/08/1989US4855595 Electric field control in ion mobility spectrometry
08/08/1989US4855593 Method for recording ICR mass spectra and ICR mass spectrometer designed for carrying out the said method
08/08/1989US4855225 Method of detecting electrophoretically separated oligonucleotides
08/08/1989US4855118 Method of producing fluorapatite
08/08/1989US4855034 Alumina solid electrolyte
08/08/1989US4854998 Method for manufacturing an analytical element
08/08/1989US4854725 Multi-sensor steam quality monitoring means and method
08/08/1989US4854155 Combustible gas detector having catalytic sensor stabilizing network
08/03/1989DE3900184A1 Precipitation-dependent control for covering systems
08/03/1989DE3735872A1 Apparatus for fractionating an analytical sample
08/02/1989EP0326524A2 A method for the determination of bilirubin in solution
08/02/1989EP0326421A2 An electroanalytical method
08/02/1989EP0326399A2 Oxygen sensor
08/02/1989EP0326266A2 Tomographic flow imaging system
08/02/1989EP0326259A1 A liquid transporting pipeline having a liquid leakage sensor
08/02/1989EP0326258A2 An oil leakage detection device
08/02/1989EP0326147A2 Measurement of the electrochemical characteristics of a composition
08/02/1989EP0326081A2 Enzyme electrode
08/02/1989EP0326071A2 Method and apparatus for testing with magnetic powder
08/02/1989EP0325753A2 Apparatus for monitoring the conductivity of a semiconductor wafer during polishing
08/02/1989CN2042202U Inspecting stick for broken rail and electrical connection
08/02/1989CN2042201U Ion meter
08/02/1989CN2042200U Conductance controlling instrument
08/02/1989CN2041990U Contact signal generator for friction welder
08/02/1989CN1034432A 生物传感器 Biosensor
08/01/1989US4853638 Water quality control method, and method and apparatus for measuring electrical conductivity used in the water quality control
08/01/1989US4853637 Fluid conductivity sensor for actuating an electroexploding device
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