Patents
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
09/1994
09/06/1994US5343758 Method and apparatus for measuring gas flow
09/06/1994US5343746 Humidity sensing apparatus
09/06/1994US5343735 Apparatus for accurately measuring the water content of gases
09/06/1994CA2060314C Low electroendosmosis agarose
09/01/1994WO1994019688A1 Method and apparatus for predicting end-of-life of a consumable in a fluid purification system
09/01/1994WO1994019685A1 Electrochemical sensor cartridge
09/01/1994WO1994019684A1 Portable immediate response medical analyzer
09/01/1994WO1994019683A1 Disposable electrochemical measurement cartridge
09/01/1994WO1994019673A1 Methods and devices for electrochemically determining metal fatigue status
09/01/1994WO1994019593A1 Combination of lambda sensors
09/01/1994WO1994019515A1 Glassy carbon containing metal particles
09/01/1994WO1994019514A1 Single use separation cartridge for a capillary electrophoresis instrument
09/01/1994DE4305930A1 Solid-electrolyte sensor for measuring gaseous anhydrides
09/01/1994CA2144529A1 Single use separation cartridge for a capillary electrophoresis instrument
08/1994
08/31/1994EP0613171A1 Mass spectrometer for mass discrimination according to the time of flight
08/31/1994EP0613130A1 Carbon material originating from graphite and method of producing same
08/31/1994EP0613002A2 Method and apparatus for taking and preparing samples for capillary electrophoresis
08/31/1994EP0613001A1 Method for measuring the pH of a solution using glass electrodes with simultaneous calibration of the electrodes
08/31/1994EP0612994A2 Matrix for matrix-assisted laser desorption mass spectroscopy
08/31/1994EP0521043B1 Automatic polyelectrolyte determining device
08/31/1994EP0397799B1 A piezoelectric motion transducer and an integrated scanning tunneling microscope using the same
08/30/1994USRE34708 Scanning ion conductance microscope
08/30/1994US5343156 IC for producing an output voltage related to fuel composition in a capacitive fuel sensor
08/30/1994US5343146 Combination coating thickness gauge using a magnetic flux density sensor and an eddy current search coil
08/30/1994US5342701 Transition metal oxide films and gas sensors thereof
08/30/1994US5342692 Solid support with addition polymerized surfactant monolayer having polymer strands in ordered array coated thereon; determination of protein structure
08/30/1994US5342580 Uses volumetric method by governing pressure, temperature and rate of flow
08/30/1994US5342499 Monitoring and control of process streams at elevated temperatures
08/30/1994US5342497 Electrophoresis system
08/30/1994US5342492 Supplying voltage to separation capillary in an electrophoretic system
08/30/1994US5342490 Measuring potential produced from oxidizable sulfur compound and coating on electrode of metal porphyrins
08/30/1994US5342489 Melting specific metal with slag, measuring oxygen activity of metal, correlating to slag
08/30/1994US5341678 Method for determining thickness of ferromagnetic material deposition on nuclear fuel rods
08/30/1994US5341673 Method and device for monitoring of moisture in soil
08/30/1994CA1331792C Halogen monitoring apparatus
08/25/1994DE4405251A1 Method for processing electrophoretic data
08/25/1994DE4328966C1 Method for determining the degree of spoilage of oils or fats for deep-frying or frying foods
08/25/1994DE4304966A1 Device for determining lambda values
08/24/1994EP0611827A1 Substrate sensitive membrane having thin metal film layer and enzyme electrode using the same
08/24/1994EP0506668B1 Process and device for monitoring the operation of a probe heating installation
08/24/1994EP0408617B1 Sensor for verification of genuineness of security paper
08/24/1994CN1025759C Low consumed power catalytic fuel gas sensor
08/23/1994US5341193 Method and apparatus for sensing magnetic signal strength of xerographically developed toner images for closed loop control of magnetic printing
08/23/1994US5341103 Apparatus for simultaneously generating and measuring a triboelectric charge
08/23/1994US5341102 Electromagnetic induction-type conductivity meter with improved calibration with auxiliary circuit
08/23/1994US5340983 Method and apparatus for mass analysis using slow monochromatic electrons
08/23/1994US5340462 Air-fuel ratio sensor
08/23/1994US5340461 Separating large quantities; slab-type electrophoretic analysis
08/23/1994US5340453 Using aminonaphthalenesulfonic acid as fluorescent label
08/23/1994US5340452 A separator having a particular material which immobilizing the analytes and releasing by electrodialysis
08/23/1994US5340449 Separation of proteins, nucleic acids from solid phase matrix and membrane in an electric field
08/23/1994US5339675 Apparatus for monitoring impurities in a gas stream
08/23/1994US5339672 Monitoring of gas dissolved in oil
08/23/1994US5339671 Calibration cuvette
08/18/1994WO1994018575A1 Horizontal eddy current sensor
08/18/1994WO1994018555A1 Sequential ion chromatography and conversion system
08/18/1994WO1994018553A1 Solid electrolyte sensor with integrated heater
08/18/1994WO1994018552A1 Multiplexed fluorescence detector system for capillary electrophoresis
08/18/1994WO1994018551A1 Gas sensing devices
08/18/1994WO1994018541A1 Process and apparatus for positioning a probe in a flame for measurement of compounds combusted in the flame
08/18/1994DE4314888C1 Method for depositing a total surface (covering) layer through a mask and optional closure of this mask
08/17/1994EP0610884A1 Oxygen concentration sensor
08/17/1994EP0610419A1 Process and capillary columns for separating enantiomers.
08/17/1994EP0610376A1 Electrochemical detector cell, method and pyrolysis furnace
08/17/1994EP0610332A1 Cation-selective polymeric electrodes.
08/17/1994EP0610331A1 Circuit assembly and method for electrical eddy-current testing
08/17/1994EP0610200A1 Streaming potential measuring cell
08/17/1994EP0418355B1 Process for immobilizing proteins, peptides, coenzymes, etc. on a substrate
08/17/1994CN2174706Y Neutral carrier membrane pH electrode
08/17/1994CN2174705Y Combined electrode
08/17/1994CN2174704Y Salt bridge for micro carrier sample
08/17/1994CN2174703Y Automatic determining instrument for mixing homogeneous degree of fodder
08/16/1994US5339256 Expert system for analyzing eddy current measurements
08/16/1994US5339254 Instrument for determining the stability of fat or oil
08/16/1994US5339025 Method for determining the granular nature of superconductors using pulsed current
08/16/1994US5338931 Photoionization ion mobility spectrometer
08/16/1994US5338623 With conductive interconnecting structures electrically connecting anode of one cell to cathode of adjacent cell and gas-tight seal positioned between interconnect and cells
08/16/1994US5338435 Portable analyzer with hydrating fluid electrically isolated from electric circuitry of substrate and attachment means
08/16/1994US5338431 Oxygen concentration detecting apparatus
08/16/1994US5338430 Nanostructured electrode membranes
08/16/1994US5338429 Electrochemical toxic gas sensor
08/16/1994US5338428 Poly(N-Acylalkylenimine) electrophoresis support media
08/16/1994US5338427 Single use separation cartridge for a capillary electrophoresis instrument
08/16/1994US5338426 Horizontal polyacrylamide gel electrophoresis
08/16/1994US5338390 Two conductive electrodes positioned on opposite sides of wafer in etchant bath; monitoring impedance
08/16/1994US5338375 Use of iron salts as corrosion inhibitors in titanium vessels
08/16/1994US5337605 Enclosure for humidity sensing element
08/14/1994CA2114911A1 Substrate sensitive membrane having thin metal film layer and enzyme electrode using the same
08/11/1994DE4401793A1 Ceramic heater and method for its production
08/11/1994DE4303446A1 Double-segment conical electrode
08/10/1994EP0609763A2 PH-glasselectrode
08/10/1994EP0609760A1 Electrochemical measurement system with snap-off sensor zones for the determination of glucose
08/10/1994EP0609495A2 Method and apparatus for monitoring the presence of a gas
08/10/1994EP0609334A1 SELF DIAGNOSTIC pH SENSOR
08/10/1994EP0609326A1 INSULATED CORE ELECTRODE FOR pH SENSOR
08/10/1994EP0609316A1 Sensing gaseous substances.
08/10/1994EP0451209B1 Arrangement for detecting metallic particles carried by a fluid
08/10/1994EP0303694B1 Improved electrochemical sensor
08/10/1994CN2173958Y Milk tester
08/09/1994US5337353 Capacitive proximity sensors