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8097148 |
Method for ultrasonic cleaning of a working electrode in electrochemical cell useful for automated trace metals measurement
Methods for cleaning and regenerating a working electrode in an electrochemical cell; method for measuring the concentration of a metal in a liquid sample in an electrochemical cell having a...
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7968149 |
Regeneration apparatus and regeneration method for electroless plating
A regeneration apparatus for an electroless plating solution, which includes a sensor for measuring the formation rate of phosphorous acid formed in a plating tank in response to a plating...
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7950222 |
System and method for cleaning combustion soot from exhaust gas treatment sensors
A system and method are provided for cleaning combustion soot from an exhaust gas aftertreatment sensor. The system and method determine whether to conduct a sensor desoot event, and if it is...
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7892603 |
Regeneration apparatus and regeneration method for electroless plating
A regeneration apparatus for an electroless plating solution includes a sensor for measuring the formation rate of phosphorous acid formed in a plating tank in response to a plating treatment, a...
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7794575 |
Monitoring of gas sensors
A monitor is disclosed for monitoring an atmosphere for the presence of a target gas. The monitor includes an electrical gas sensor having a working (sensing) electrode and a counter electrode, an...
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7641784 |
Method for measuring by means of chemical sensor, and chemical sensor type measuring apparatus
There is disclosed means for quickly solving instability of sensor sensitivity performances found in an initial stage and stabilizing the sensor sensitivity performances, when immersing a chemical...
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7601249 |
Method and apparatus for assay of electrochemical properties
A method for monitoring a select analyte in a sample in an electrochemical system. The method includes applying to the electrochemical system a time-varying potential superimposed on a DC potential...
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7566392 |
Pulsed electrochemical detection method
In one embodiment, the present invention is directed to a pulsed electrochemical detection method comprising (a) flowing a liquid sample stream including at least one analyte past a working...
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7455760 |
Analytical instruments, biosensors and methods thereof
An electrochemical sensor system and membrane and method thereof for increased accuracy and effective life of electrochemical and enzyme sensors.
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7285197 |
Regeneration of biosensors
The invention relates to a system for continuous monitoring of analytes in a biological fluid, the system having increased life by virtue of inherent regeneration of sensors employed. An embodiment...
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7264709 |
Method and apparatus for conditioning a sensor for measuring oxidation reduction potential
A method and apparatus for conditioning a sensor to measure an oxidation reduction potential of an aqueous solution such that the time to obtain a reliable oxidation reduction potential measurement...
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7244316 |
Methods of making gas sensors and sensors formed therefrom
A two-step chemical treatment method for chemically conditioning a sensor element comprising an electrolyte in ionic communication with a first electrode and a second electrode is described. The...
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7244345 |
Electrochemical method and sensor for the detection of traces of explosives
A system for highly sensitive electrochemical detection of trace nitro-aromatic compounds in air, uses a carbon or carbon/gold working electrode with a surface that is modified to increase the...
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7045047 |
Gas sensor element
A gas sensor element which may be employed in measuring the concentration of gas such O2, NOx, or CO. The gas sensor element consists of an electrochemical cell made up of a solid electrolyte body...
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6926814 |
Automatable measuring, cleaning and calibration device for pH-electrodes or electrodes for measuring redox potentials
An automatable measuring, cleaning and calibrating device for pH-electrodes or electrodes for measuring redox potentials, specifically in process engineering, having an electrode armature which...
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6916384 |
Method of treating a gas sensor
A method of treating a gas sensor comprising: disposing the gas sensor in a basic agent solution comprising a basic agent selected from the group consisting of Group IA of the Periodic Table of...
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6881306 |
Combination electrode for electrochemical restoration of corrosion-damaged reinforced concrete and method of controlling same
Re-usable, energy-efficient apparatus for the restoration of corrosion-damaged reinforced concrete and a method for controlling the same. The apparatus includes a combination electrode device in a...
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6776895 |
Method of producing a gas sensor element
A method of manufacturing a gas sensor element which includes a solid electrolyte body, a target gas electrode a reference gas electrode provided on a surface of the solid electrolyte body so as to...
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6758960 |
Electrode assembly and method of using the same
The present invention relates to an electrode assembly that is capable of both solution measurement and in-line self-cleaning. Specifically, such electrode assembly comprises a central electrode...
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6719888 |
Reference electrode assembly
A reference electrode assembly having a constrained-diffusion liquid junction between a liquid junction solution and a sample solution having separate flow paths, said assembly comprising a flow...
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6706532 |
Membrane for chemical and biosensors
Aqueous membrane permeable by mass transport to a charged and uncharged species of interest, comprising a synthetic polymeric material and a surface active agent which is miscible with the...
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6599473 |
Electrochemilumiscence method for detecting analytes
A method for analyzing a liquid test sample by electrochemiluminescence. The method includes at least one specific biochemical binding reaction that leads to the formation of a complex which...
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6558529 |
Electrochemical sensor for the specific detection of peroxyacetic acid in aqueous solutions using pulse amperometric methods
An electrochemical sensor (A, A′) is specific for the detection of peroxyacetic acid in a solution which also contains hydrogen peroxide. A potential is applied between a reference electrode (...
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6551499 |
Method for monitoring the function of a gas sensor and/or for regenerating the same
This invention provides a method for monitoring the function and/or regeneration of a gas probe. The invention includes a measurement of first and second pump currents of the gas probe and a...
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6541741 |
Heater control device for air-fuel ratio sensor
In performing control to supply power to a heater by detecting the impedance of a sensor element and feeding it back for control, a heater control device for an air-fuel ratio according to the...
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6524467 |
Method for adjusting output characteristics of a gas sensing element based on application of electric power to this sensing element
Each gas sensing element, with a measured gas sensing electrode and a reference gas sensing electrode provided on opposite surfaces of a solid electrolytic body, is manufactured to have a limit...
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6478950 |
Sensing liquids in oil well using electrochemical sensor
A sensor module for monitoring chemical properties of oil well fluids comprises at least one electrochemical sensor for a chemcal species, for example to detect pH and chloride ion concentration. A...
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6447659 |
Intrinsic shorting link for gas sensors
An amperometric electrochemical gas sensor includes a permanent electrical resistance means disposed between two electrodes, one of which is the working electrode, the electrical resistance means...
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6447670 |
Method and apparatus for compensating for drift in potential of a reference electrode in electrochemical measurements
In a method and an apparatus for measuring a concentration of at least one dissolved chemical entity in a liquid medium, employing a counter electrode, a working electrode and a reference electrode...
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6419809 |
Miniature reference electrode
A miniature reference electrode with improved stability and durability formed of a miniature silver/silver chloride reference electrode with high stability and general applicability as a reference...
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6413398 |
Method for electrochemical detection
A method for electrochemical detection (ECD) is disclosed. The illustrated embodiments are particularly adapted to use in detection of analytes separated by capillary electrophoresis. The method is...
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6344133 |
Process for operating an electrochemical measuring cell
A process for operating an electrochemical measuring cell (1) is described, with which it is possible to carry out gas concentration measurements already shortly after switching on the measuring...
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6340597 |
Electrochemical biosensors and process for their preparation
The present invention concerns new electrochemical biosensors for the determination of analytes concentration in sample solutions or suspensions, based on composite transducers containing an...
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6334946 |
Method of stabilizing pump current in gas sensor
A method of stabilizing pump current in a gas sensor through suppression of oscillations of the pump current which result from pulsations of measured gas is provided. The gas sensor includes an...
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6251260 |
Potentiometric sensors for analytic determination
A potentiometric electrode and method for the determination of an analyte in a sample by linearly correlating potential at the electrode with the concentration of the analyte in the sample.
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6068743 |
Brain-pO2 measuring device
A measuring device for determining the oxygen partial pressure in human brain tissue has a probe (5) with a tube (7) of tissue-compatible plastic material in a measuring region surrounding an...
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6024853 |
Electrochemical oxygen sensor
An electrochemical oxygen sensor with a measuring electrode, an atmospheric oxygen electrode as a reference electrode, and an auxiliary electrode in an electrolyte is improved such that a stable...
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6007697 |
Method for cleaning a limiting current type gas sensor
A sensor cleaning method and a detection apparatus enabling easy and correct measurement for an uninterrupted prolonged time duration of the gas concentration.The method is based on the value of a...
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6007688 |
Wide range air/fuel ratio sensor having one electrochemical cell
There are proposed an air/fuel ratio sensor which can detect a wide range of an air/fuel ratio and provides a simple structure, a superior mechanical strength or durability and a reduced...
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5985129 |
Method for increasing the service life of an implantable sensor
Methods are described for extending the service life of implantable sensors having a silver-containing anodic reference electrode maintained at a high impedance, at least one noble metal cathodic...
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5976350 |
Method of and apparatus for detecting an activated condition of a wide range air-fuel ratio sensor
A method of detecting an activated condition of a wide range air-fuel ratio sensor is provided. With this method, application of a current to a heater is started idiately after an engine is started...
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5968329 |
Interchangeable multiple test system for portable analyzer
A portable clinical system for providing a rapid electrochemical analysis of biological sera of interest at the point-of-care using a portable analyzer unit and a multi-sensor electrochemical...
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5958214 |
Electrochemical sensor with a solid electrolyte for measuring the gas concentration
The invention relates to an electrochemical sensor to determine the concentration of a gas to be quantified, comprising a housing, a measuring electrode comprising a catalystically active material...
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5942388 |
Electrobiochemical method and system for the determination of an analyte which is a member of a recognition pair in a liquid medium, and electrodes thereof
An elcctrobiochemical system for the determination of the presence and optionally concentration of an analyte in a liquid medium, the system comprising an electrode having immobilized thereon a...
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5855752 |
Apparatus for cleaning gas sensor
An apparatus for cleaning a gas sensor and a method therefor are disclosed. A high voltage is supplied to a heat generating body of the gas sensor for a certain period of time to generate a large...
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5766563 |
Method for controlling the oxidation of sulfites in a flue gas desulfurization process
A method of controlling the oxidation of sulfites in a flue gas desulfurization process involves treating the exhaust gas with an absorbing fluid containing a calcium compound and controlling the...
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5759366 |
CO2 sensor and measurement circuit using the sensor
A CO2 sensor includes a body of solid electrolyte ceramic with alkali ion conductivity, and two electrodes of conductor material being inert with respect to the solid electrolyte ceramic. At least...
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5747983 |
Apparatus and method for measuring potentials through pavements for buried pipeline cathodic protection systems
Fluid transmission pipelines and similar structures which are cathodically protected from electrolytic corrosion and are disposed in urban areas under pavements and other structures which prevent...
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5719033 |
Thin film transistor bio/chemical sensor
A chemical sensor includes a thin film transistor with a gate positioned on one side. An insulating layer is positioned on the opposite side and an indicator film is positioned on the insulating...
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5653863 |
Method for reducing bias in amperometric sensors
Apparatus and method are provided for determining the concentration of an analyte in a fluid test sample by applying the fluid test sample to the surface of a working electrode which is...
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