Patents
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
05/1993
05/25/1993US5214267 Apparatus for controlling heater for heating oxygen sensor
05/25/1993US5213675 Reference electrode, ion sensor and method of manufacturing the same
05/25/1993US5213673 Multi-colored electrophoresis pattern reading apparatus
05/25/1993US5213669 Capillary column containing a dynamically cross-linked composition and method of use
05/25/1993US5213668 Monitoring and control of process streams at elevated temperatures
05/25/1993US5212982 Method and apparatus to check the acceptableness of the state of wear in the covering fabric of a driving belt
05/25/1993CA1318353C System employing a biosensor to monitor a characteristic of a select component in a medium
05/21/1993CA2079301A1 Method for the rapid determination of the microorganism content of liquids and fluid solutions, and apparatus for implementing this method
05/19/1993EP0542337A1 An oil sensor and methods of making and using the same
05/19/1993EP0542140A2 Tube arrangement for use in a blood circuit
05/19/1993EP0541922A2 Method and device for catalytic post-combustion of exhaust gas of an internal combustion engine
05/19/1993EP0541895A1 Particle sensor probe
05/19/1993EP0541739A1 Reference electrode with an ion-retention barrier for electro-chemical measuring equipment.
05/19/1993EP0541578A1 Polymerisable porphyrins
05/19/1993EP0327588B1 High sensitivity optical imaging apparatus
05/19/1993DE4238452A1 Automatic electrophoresis unit - includes unit for supplying substrate sheets to buffer wetting unit, or feed unit with controlled shear and feed units, or several feed units for supplying sheets of different length
05/19/1993DE4236942A1 Paramagnetic oxygen@ analyser using pulsed inhomogeneous magnetic field - for non-position dependent gas analysis, consisting of bridge circuit, electrical generator and flowmeter
05/19/1993DE4212505C1 Double wall pipe providing intermediate chamber for lambda sensor support - is insulated to prevent loss of heat from exhaust gas of motor vehicle so that catalyser can be effective from cold start
05/19/1993DE4137877A1 Physico-chemical characterisation process for protein macromolecules - by soaking macromolecules in potassium nitrate soln., warming then using phase-selective AC polarography for selective discrimination of specific structure types
05/19/1993DE4137261A1 Miniaturisiertes sensorelement zur bestimmung der stoffkonzentration in fluessigkeiten und verfahren zu seiner herstellung A miniaturized sensor element for determining the substance concentration in liquids and process for its preparation
05/19/1993DE4131731A1 Sensor for determining chemicals in liq. gps. or glass - has micro-electrode array on silicon@ chip useful e.g. for determining oxygen concn. in blood
05/19/1993CN2133841Y Monitor for oil residue
05/19/1993CN2133840Y Solid electrolyte oxygen meter
05/19/1993CN1072261A On-line hydraulic system pollution particle monitor
05/19/1993CN1020803C Probe for measuring negative offset of under ground pipe-line cathode protection protential and measuring method
05/19/1993CN1020802C Method and system for on-line calibration and validation of process instrumentation
05/19/1993CN1020801C Apparatus for accurately measuring the relative conductivity of sea water and the absolute conductivity of solutions
05/18/1993US5212453 Pulse echo method and apparatus for measuring the moisture content of materials
05/18/1993US5212299 Glyceryl agarose and borate compositions
05/18/1993US5212253 Electrophoresis element comprising a polymer containing a haloacetamido group
05/18/1993US5212018 Titanium, platinum black
05/18/1993US5211830 Sheet-type electrode for use in the measurement of ion concentration
05/18/1993US5211829 Analytical method and apparatus using capillary tube
05/18/1993US5211827 Electrochemical cell with ionic semiconductor separator
05/18/1993US5211820 Gas analysis system for furnaces and the like
05/18/1993US5211154 Method and apparatus for maintaining stoichiometric air-to-fuel ratio in an internal combustion engine
05/18/1993US5211053 Hot gas sensor device with improved thermal isolation from carrier plate
05/15/1993WO1993010258A1 Capillary zone electrophoretic analysis of isoenzymes
05/15/1993CA2099567A1 Capillary zone electrophoretic analysis of isoenzymes
05/13/1993WO1993009433A1 Electrochemical measurement system having interference reduction circuit
05/13/1993WO1993009428A1 Circuit assembly and method for electrical eddy-current testing
05/13/1993WO1993009427A1 Cation-selective polymeric electrodes
05/13/1993WO1993009426A1 Electrochemical detector cell, method and pyrolysis furnace
05/13/1993WO1993008984A1 Bistable magneto-optic single crystal films and method of producing same utilizing controlled defect introduction
05/13/1993WO1993008903A1 Process and capillary columns for separating enantiomers
05/13/1993DE4236960A1 Non-Otto IC engine air-fuel mixture regulating - having at least one cylinder for optimum use of catalyser with probe for determining air ratio, lambda, in hot exhaust gas flow with carbon mon:oxide and nitrogen:oxide
05/13/1993DE4203523C1 Carbon di:oxide sensor arrangement - has single or polycrystalline Aluminium Oxide substrate, solid state ion conductor provided as film over top and bottom of substrate, counter electrode and working electrodes applied to ion conductor
05/13/1993DE4203522C1 Temp. stable oxygen@ sensor - includes two sensor layers which show different dependence of conductivity on partial pressure of oxygen@ but similar variation of conductivity with temp.
05/13/1993DE4137197A1 Gas sensor with temp. gradient region useful in portable battery powered detectors - has temp. sensors provided with exothermic reaction catalyst
05/13/1993DE4137030A1 Elektrochemischer sensor zur messung der gaskonzentration An electrochemical sensor for measuring the gas concentration
05/13/1993DE4136639A1 Electrical detection system for non dissolved gas in HF plant - uses fluid-filled capacitors to detect change in dielectric constant caused by gas penetrating liquid
05/13/1993DE4136217A1 Multiple sample transfer device for automated electrophoretic analysis - in which sample locations lie precisely vertically below associated location of applicator
05/13/1993CA2122362A1 Circuit arrangement and method for electrical eddy-current testing
05/13/1993CA2122264A1 Bistable magneto-optic single crystal films and method of producing same utilizing controlled defect introduction
05/12/1993EP0541520A2 Detector for detecting discontinuities in a pipe
05/12/1993EP0541495A2 Apparatus for accurately measuring the water content of gas
05/12/1993EP0541264A2 Method of performing an instantaneous moisture concentration measurement and for determining the drydown characteristics of an environment
05/12/1993EP0541238A1 Capillary column for high performance electrophoretic separation and detection of SDS proteins and system for using the same
05/12/1993EP0541108A1 Arthrobacter nicotiana strain, activity of the strain, method to isolate the strain, sensor with the activity and use of the strain
05/12/1993EP0540974A2 Apparatus for simultaneous determination of different gas components
05/12/1993EP0540907A1 Oxygen analyzer
05/12/1993EP0540839A1 Probe for atomic force microscope usable for scanning tunneling microscope
05/12/1993EP0540720A1 Time compressed chromatography in mass spectrometry
05/12/1993EP0540691A1 Method for analytically utilizing microfabricated sensors during wet-up
05/12/1993EP0442969A4 Wholly microfabricated biosensors and process for the manufacture and use thereof
05/12/1993EP0318551B1 Polymers, and their use as gels for electrophoresis
05/12/1993CN2132987Y Flow continous-ion electrode analysis meter
05/12/1993CN2132986Y Time siren for canal moisture measured instrument
05/11/1993USRE34248 Primary source of electrical energy using a mixture of fuel and oxidizer
05/11/1993US5210500 Process for contactless measurement of the electrical resistance of a test material
05/11/1993US5210499 In-situ sensor method and device
05/11/1993US5210492 Remote field eddy current flaw detector for metal pipes having a pair of receiver coils providing a differential offset amplitude signal
05/11/1993US5209834 Ordered transport and identification of particles
05/11/1993US5209831 Bufferless electrophoresis system and method
05/11/1993US5209275 Liquid dispensing apparatus and method by sensing the type of liquid vapors in the receiver
05/11/1993US5209206 Air-fuel ratio control system
05/09/1993CA2082324A1 Arthrobacter nicotiana strain, activity of the strain, process for the isolation of the strain, sensor with the activity and use of the strain
05/09/1993CA2082194A1 Device for the simultaneous detection of dissimilar gas components
05/06/1993DE4236711A1 Particulate soot determination e.g. for combustion gases - from EMF variation induced by deposition on an electrode in a solid electrolyte cell
05/06/1993DE4136462A1 Verfahren zur enantiomerentrennung an chiral modifizierten trennoberflaechen durch elektromigration in kapillarsaeulen Process for the separation of enantiomers on chiral modified trennoberflaechen by capillary electromigration in
05/06/1993DE4136413A1 Flame ionisation detector e.g. for methane and ethane conc. analysis - has second ionisation detector in parallel connected to gas chromatography for measuring hydrocarbon conc. in component gases
05/06/1993DE4136412A1 Infinitely variable system for gas feed dilution - e.g. for hydrocarbon contg. gas samples, fed to flame ionisation detector unit
05/06/1993DE4135580A1 IC engine injection nozzle jet pattern representing appts. - has array of capacitive measuring cells and determines filling with petrol or diesel from nozzle directed at array
05/05/1993EP0539912A2 Method for producing dry-operative ion-selective electrode
05/05/1993EP0539814A2 Electrocatalytic glucose sensor
05/05/1993EP0539743A1 Enhanced fluorescence detection of samples in capillary column
05/05/1993EP0539731A1 Probe of scanning electrochemical microscope and method of manufacturing the same
05/05/1993EP0539552A1 Electrophoresis chamber
05/05/1993EP0539399A1 Device for preparatory electrophoresis
05/05/1993EP0521065A4 Electrophoretic media
05/05/1993EP0406252B1 ELEMENT FOR LIMIT-CURRENT SENSORS FOR DETERMINING THE $g(l) VALUE OF A GAS MIXTURE
05/05/1993CN2131460Y Ph valve dynamic monitoring apparatus for upper digestive tract
05/05/1993CN1020519C Fabrication of humidity sensor made of oxide ceramic membrane
05/05/1993CN1020505C Method for determination of dissolving rate of high molecular electrolytes
05/04/1993US5208544 Noninvasive dielectric sensor and technique for measuring polymer properties
05/04/1993US5208466 Apparatus and method for aligning capillary column and detection optics
05/04/1993US5208458 Interface device to couple gel electrophoresis with mass spectrometry using sample disruption
05/04/1993US5208457 Cesium oxide ion as primary beam
05/04/1993US5208164 Process for monitoring alkanolamine solutions
05/04/1993US5208162 Method and apparatus for monitoring corrosion