| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 436163000 | INCLUDING TITRATION OR PH DETERMINATION | 63 |
| 20080280373 | Method and apparatus for measuring pH of low alkalinity solutions - Systems and methods are described for measuring pH of low alkalinity samples. The present invention provides a sensor array comprising a plurality of pH indicators, each indicator having a different indicator concentration. A calibration function is generated by applying the sensor array to a sample solution having a known pH such that pH responses from each indicator are simultaneously recorded versus indicator concentration for each indicator. Once calibrated, the sensor array is applied to low alkalinity samples having unknown pH. Results from each pH indicator are then compared to the calibration function, and fitting functions are extrapolated to obtain the actual pH of the low alkalinity sample. | 11-13-2008 |
| 20090081806 | Methods and Compositions for pH Control - The present invention comprises methods and compositions for controlling the pH of a confined body of water, such as a swimming pool, spas, and hot tubs, using an organic acid specifically citric acid alone or in combination with other organic acids, borates or boric acid or other chelants or clarifiers. The amount of organic acid added to the confined body of water is determined relative to the pH of the water prior to such addition and the volume of water being treated. The amount of maintenance doses of organic acid is based upon the volume of water being treated and the magnitude of pH change required for adjustment to desired pH. The organic acid can be dispensed automatically or manually and can be dispensed as a solid, including a dispersable powder form, a capsule, or tablet, or as a liquid concentrate to be diluted in the confined body of water. | 03-26-2009 |
| 20090148953 | DETERMINING METHOD OF INK FOR INK-JET RECORDING OR RECORDED MATTER, INK FOR INK-JET RECORDING AND INK SET FOR INK-JET RECORDING - A determining method is provided which can more easily determine whether an ink contains an amphoteric metal oxide or whether a recorded matter is recorded with an ink containing an amphoteric metal oxide. The determining method includes applying an acidic aqueous solution or an alkaline aqueous solution to an ink for ink-jet recording or a recorded portion of a recorded matter recorded with an ink for ink-jet recording, and observing pH change. | 06-11-2009 |
| 20090181466 | INDICATOR GRANULAR MATERIAL - The present invention relates to indicator granular material, especially for a cat lavatory, in which at least one first granular material is substantially completely coated with a first polymer layer, which is solid at a first pH and is dissolved at a second pH; and also to a cat lavatory and the use of the indicator granular material in a cat lavatory. | 07-16-2009 |
| 20090275144 | System and Method for Colorimetric Titration Measurements - A system for colorimetric titration, comprising a container ( | 11-05-2009 |
| 20100029011 | ANALYTICAL TEST CARTRIDGE; AND, METHODS - An analytical test cartridge is provided. The analytical test cartridge can be used for medical analyses of liquid samples removed from a patient, for example blood. The analytical test cartridge is configured to provide for titration experiments. An example of a titration experiment that can be performed with the arrangement, is titration of heparin with protamine. Methods of assembly and use are provided. | 02-04-2010 |
| 20100035356 | Method and apparatus for determining the stability of an electroless plating bath - The stability of an electroless plating bath for depositing a metal (e.g., nickel) is determined by titrating a sample of the plating bath with a titrant comprising ions of a catalytic metal (e.g., palladium) and detecting hydrogen released at the titration endpoint. The quantity of titrant required to attain the endpoint provides a measure of the stability of the electroless plating bath. | 02-11-2010 |
| 20100087009 | Method for automated formulation process for production of radiopharmaceutical injection medicine and evaluation thereof - A method of automated formulation process for radiopharmaceutical injection medicine, including preparation for process control and calculation for formulation control, wherein the preparation steps for process control includes measuring radioactivity and size of radiopharmaceutical materials, determining measurement time and calibration time, measuring pH value and impurity percentage of radiopharmaceutical raw materials. By means of input of parameters measured and calculation of the volume of injection solvent and pH value, finished product of injection medicine is obtained when the pH value reaches 6.5, and the finished product is dispensed into the sterile bottles. | 04-08-2010 |
| 20100136707 | METHODS FOR MONITORING PATHOLOGICAL CONDITIONS IN A FEMALE SUBJECT - A method for identifying physiological conditions associated with the pH or the buffer capacities of biological fluid secreted from a person, by providing a secretion-monitoring article of a body that includes an absorbent material for absorbing a biological fluid secreted from a person and an indicator system having a hydrophobic chemical composition that includes an indicator agent and an ion-balance reagent, at specific relative amounts. Optionally, a competitive agent for establishing a pre-set threshold of an analyte of interest in a tested bodily fluid, is added to the indicator system, wherein the indicator reagent being charged oppositely to the analyte of interest and the competitive reagent having the same charge as the indicator reagent. | 06-03-2010 |
| 20100159611 | HYDRATION/DEHYDRATION SENSOR - A fluidic assay device or test format that can regulate or control the sample flow rate and modulate the manifestation of test results to reduce or eliminate errors is described. The assay device has a substrate with a flow-rate control zone that regulates the amount of time needed for development and appearance of a visual signal in the observation-feedback zone until the color transition in the detection zone reaches color stability. The present invention also describes absorbent articles incorporating such an assay device and methods of monitoring dehydration or testing ion strength of a urine sample using such a test format. | 06-24-2010 |
| 20100197036 | PORTABLE MEASURING DEVICE - The invention relates to a portable measuring device for measuring the salinity, the acidity (pH) or other chemical and physical parameters on different types of surfaces ( | 08-05-2010 |
| 20100197037 | System for Evaluating the pH and Buffering Capacity of Moisture Containing Cleansing Articles - A system comprising a moisture containing cleansing article and a visual pH indicator changing color at a pH above 4.0. The system can comprise a buffer, having preferably a pKa above 5.5. The system can comprise a set of instructions for evaluating moisture containing cleansing articles. The pH buffer of the system can have a pKa value equal to or greater than the pH of the color change of the visual pH indicator. The pH of color change of the visual pH indicator can be equal to or greater than the pH of the lotion. The system can be used to evaluate the pH of moisture containing cleansing article lotions and to quantify the ability to neutralize alkalinity such as the alkalinity provided by residues of feces and urine over time on the skin of a baby. | 08-05-2010 |
| 20100240141 | APPARATUS AND METHOD FOR MEASURING CONCENTRATION OF CARBON DIOXIDE IN WATER - An apparatus for measuring the concentration of carbon dioxide in water that can correct a reduction in measurement accuracy based on deterioration of a pH indicator is provided. A carbon dioxide concentration measurement apparatus includes a deterioration determining section that measures a change rate ΔA | 09-23-2010 |
| 20100285604 | DISSOLVABLE FILM WITH DETECTION FUNTIONALITY - Provided are films having a visual cue agent present in a sufficient amount to present a visual cue when the film is contacted by an aqueous solution, and methods of detecting when a film is contacted by an aqueous solution. | 11-11-2010 |
| 20100304496 | FLUID DISPENSER WITH LOW SURFACE ENERGY ORIFICE LAYER FOR PRECISE FLUID DISPENSING - The present invention is embodied in a method for precisely dispensing fluid, including treating an orifice of a fluid dispensing apparatus during a fabrication process by applying a low surface energy material layer onto the orifice, adjusting a thickness of the low surface energy material coating to a predetermined threshold and limiting backpressure of a low dead volume fluid delivery system coupled to the orifice to reduce interference or interruptions for precisely dispensing the fluid. | 12-02-2010 |
| 20100330690 | Suspended Particulate Matter Measurement Apparatus and Suspended Particulate Matter Measurement Method Using the Same - Provided are a suspended particulate matter measurement apparatus capable of automatically measuring a nitrate ion content and a sulfate ion content in the atmosphere, and a suspended particulate matter measurement method using the same. The suspended particulate matter measurement apparatus includes a filter, suction part, extraction part, measurement part, and a recording part. The suction part suctions air in the atmosphere at a constant flow rate to cause particulate matter contained therein to be adsorbed onto the filter. The extraction part extracts components of the particulate matter adsorbed onto the filter, by dissolving the particulate matter into a solvent, and collects a resultant solution. The measurement part measures at least one of a nitrate ion content and a sulfate ion content in the solution collected by the extraction part, and outputs the measurement result. The recording part records the measurement result outputted from the measurement part. | 12-30-2010 |
| 20110076779 | QUINOID RYLENEDICARBOXIMIDES AS IR ABSORBERS - Compounds of the general formula (I) | 03-31-2011 |
| 20110091985 | METHOD AND APPARATUS FOR MEASURING pH OF LOW ALKALINITY SOLUTIONS - Systems and methods are described for measuring pH of low alkalinity samples. The present invention provides a sensor array comprising a plurality of pH indicators, each indicator having a different indicator concentration. A calibration function is generated by applying the sensor array to a sample solution having a known pH such that pH responses from each indicator are simultaneously recorded versus indicator concentration for each indicator. Once calibrated, the sensor array is applied to low alkalinity samples having unknown pH. Results from each pH indicator are then compared to the calibration function, and fitting functions are extrapolated to obtain the actual pH of the low alkalinity sample. | 04-21-2011 |
| 20110171745 | HALOGEN AND HEAVY METAL-FREE HUMIDITY INDICATING COMPOSITION AND HUMIDITY INDICATOR CARD CONTAINING THE SAME - The disclosed invention is a humidity indicating composition comprising
| 07-14-2011 |
| 20110177608 | METHOD AND COMPOSITION FOR DETERMINING HARDNESS IN WELLBORE FLUID FILTRATE - Disclosed herein is an indicator precursor composition for determining the hardness of a wellbore fluid filtrate comprises a colorimetric indicator and a buffer comprising a salt of a weak acid and a strong base, wherein the indicator precursor composition is a dry solid. Also disclosed is a method to determine the hardness of a wellbore fluid filtrate. | 07-21-2011 |
| 20110207232 | WATER SOLUBLE PH RESPONSIVE FLUORESCENT NANOPARTICLES - A nano-pH sensor can include a nanoparticle having an outer surface functionalized by a carboxy functional group. The nanoparticle is reversibly aggregated as a function of pH and is generally non-toxic. A fluorometer can be oriented to expose the nanoparticles to a light source at a given wavelength. Further, the fluorometer can be configured to detect changes in fluorescence of the gold nanoparticle with changes in pH. | 08-25-2011 |
| 20110236988 | FLUORESCENT pH DETECTOR SYSTEM AND RELATED METHODS - Fluorescent pH detector and methods for measuring pH using the fluorescent pH detector. | 09-29-2011 |
| 20110263037 | POLYMERIC MATERIALS INCORPORATING CORE-SHELL SILICA NANOPARTICLES - Fibers, fabrics and textiles in which core-shell silica nanoparticles are incorporated are provided. The fibers, fabrics and textiles can be polymeric materials or natural cellulose-based or protein-based materials in which core-shell silica nanoparticles are incorporated. A variety of polymeric and natural materials can be employed, such as cellulose acetate, nylon, rayon, modacrylic, olefin, acrylic, polyester, polylactic acid, polylactic-co-glycolic acid (PLGA), polyurethane, aramid, wool, cotton, ramie, milk protein, soy protein, bamboo, etc. The core-shell silica nanoparticles can incorporate sensing, magnetic, thermal, electrical, chemical or RFID properties that can be imparted to the materials and that allow the materials to sense one or more conditions of interest, making them ideal for in situ sensing, treatment, or security applications. | 10-27-2011 |
| 20110281370 | CATION EXCHANGE CAPACITY TITRATION UNIT - Disclosed herein is a cation exchange capacity titration unit comprising a titration cell having a closed bottom end in fluid communication with an open top end; a recirculation loop comprising a pump and a sensing unit, wherein the pump comprises a pump inlet in fluid communication with the bottom end of the titration cell, and a pump outlet in fluid communication with a sensing unit inlet, the sensing unit inlet being in fluid communication with a sensing unit outlet, wherein the sensing unit outlet is in fluid communication with the top end of the titration cell such that operation of the pump results in an analyte sample flowing from the bottom end through the pump, through the sensing unit, and back into the top end of the titration cell in a continuous loop. A method of determining the cation exchange capacity of a sample is also disclosed. | 11-17-2011 |
| 20110318844 | System and Method for Determining Base Content of a Hydrophobic Fluid - A system and method of quantitatively characterizing base content of a hydrophobic fluid. The method includes providing a base neutralizing solution including an alcohol (preferably selected from the group consisting of 1-propanol, ethanol, methanol, and mixtures thereof), and mixing the solution with known amounts of a base to produce a number of calibration mixtures. Infrared spectroscopic testing is performed on the calibration mixtures to derive corresponding spectrum data. The spectrum data is processed to solve for a calibration equation that relates a spectral property measurable at a predetermined wavelength to a measure of base concentration per unit volume. The base neutralizing solution is also mixed with the hydrophobic fluid to produce a sample-extract. Infrared spectroscopic testing is performed on the sample-extract to derive corresponding spectrum data. The spectrum data for the sample-extract is processed to measure the spectral property of the calibration equation. The measured spectral property of the sample-extract is input to the calibration equation in order to output a measure of base concentration per unit volume for the sample-extract. A measure of base content of the hydrophobic fluid can be derived from the base concentration per unit volume for the sample-extract. The measure of base content of the hydrophobic fluid sample is derived without splitting of the hydrophobic fluid sample. The system includes a cell for holding and evaluating an extracted sample, an infrared spectrometer for measuring infrared absorption characteristics of the extracted samples, a computer equipped with software for analyzing data outputted by the infrared spectrometer. | 12-29-2011 |
| 20120003747 | TEST STRIP CARD - The present invention relates to a test strip for determining and/or quantifying a property of a sample, such as the concentration of an analyte, the pH, the viscosity, or the specific gravity of a fluid specimen. More particularly, the present invention relates to an improved test strip and scale for determining and/or quantifying a property of a sample, such as the concentration of an analyte, the pH, the viscosity, or the specific gravity of a fluid specimen. | 01-05-2012 |
| 20120021527 | LAB-ON-A-CHIP FOR ALKALINITY ANALYSIS - Described is a lab-on-a-chip device and a method employing a lab-on-a-chip device for determining the concentration of species present in water. | 01-26-2012 |
| 20120070905 | Processes and Devices for Determining Body Parameters - A process for the determination of body parameters, in which body hair removed by shaving, especially facial hair, is separated from body substances adhering thereto or body substances removed by shaving. Body substances include skin particles, fat and/or perspiration. The separated body hair is tested for its mineral content and/or the separated, removed body substances are analyzed for their pH and/or their conductance. A device for performing the process is also disclosed. | 03-22-2012 |
| 20120094391 | Biodegradable, disposable device for toilet training - Environmentally-friendly, disposable, water submersible device that turns translucent in the presence of urine and displays a visual indicator for toilet training. | 04-19-2012 |
| 20120196380 | SYSTEM AND METHOD FOR DETECTION OF CONTAMINANTS IN AN AIRFLOW - A method for detecting contaminants in an airflow includes urging an airflow from a desired source location into a volume of water. The airflow is mixed into the water, and particles are dissolved in the water. A change in a property of the volume water is measured via a detection probe, indicative of an amount of particles present in the volume of water. A system for detecting particles includes a container configured to contain a volume of water and an airflow inlet in the container configured to introduce an airflow into the volume of water from a desired source location. A detection probe is located in the container to detect changes in a selected property of the volume of water after introduction of the airflow into the volume of water thereby indicating presence of particles in the airflow. | 08-02-2012 |
| 20120208285 | Measuring Device For Measuring A Physiological Parameter Of An Aspirate - A measuring device for measuring a physiological parameter of an aspirate. The device includes a sensor element for measuring the physiological parameter, a connection port for fluid communication with a medical tube, a collection tube for aspirating and/or collecting the aspirate, a housing, wherein the sensor element is mounted within the housing and a communication passage enabling the aspirate to enter the housing from the collection tube such that the sensor element can measure the physiological parameter. Further, a method for measuring the parameter is disclosed. | 08-16-2012 |
| 20120208286 | PYRIDINIUM BORONIC ACID QUENCHERS FOR USE IN ANALYTE SENSORS - Novel pyridinium salts functionalized with boronic acid and methods of making them are disclosed. When combined with a fluorescent dye, the compounds are useful in the detection of polyhydroxyl-substituted organic molecules. | 08-16-2012 |
| 20120214250 | METHOD AND APPARATUS FOR MEASURING PH OF SOLUTION - A method of measuring a pH of a solution includes: emitting light beams of two wavelengths from one side of a measuring region of a solution into which an indicator is mixed, while pulsating the solution in the measuring region; receiving at least one of transmitted light beams and reflected light beams of the emitted light beams on the other side of the measuring region, while pulsating the solution in the measuring region; obtaining absorbances of the two wavelengths based on the received at least one of the transmitted light beams and the reflected light beams; obtaining an absorbance ratio from the obtained absorbances ; and calculating a pH value of the solution based on the obtained absorbance ratio and an absorbance ratio/pH value correspondence database which is previously stored. | 08-23-2012 |
| 20120258546 | Automated On-Instrument pH Adjustment - A method of preparing a sequencing device includes determining a sensitivity of a pH of a solution to a first reagent, determining an amount of the first reagent to add to the solution to approach a target pH, adding the amount of the first reagent to the solution, and diluting a nucleotide solution with the solution. | 10-11-2012 |
| 20120276652 | METHOD FOR QUALIFYING A NON-PARTICULATE ION-EXCHANGER ADSORBER - The present invention relates to a method for the validation of a non-particulate ion exchange adsorber and a kit for the validation of a non-particulate ion exchange adsorber. | 11-01-2012 |
| 20120288955 | WATER ABSORBING MATERIAL - Provided is a water absorbing material having a granular core portion and a coating layer portion coating the granular core portion, which enables a test result after use to be clearly determined by developing vivid and uniform color. In the water absorbing material, the coating layer portion is composed of 90 wt % to 96 wt % of a substrate and 10 wt % to 4 wt % of an excretion test material, the excretion test material contains a porous adsorbent having an adsorbance of 20 wt % or greater and including micropores, and an excretion test indicator adsorbed on the micropores of the porous adsorbent, and the excretion test indicator is added in an amount more than 0.1 wt % and not more than 1.0 wt % relative to the total amount of the coating layer portion. | 11-15-2012 |
| 20120322161 | FLUORESCENT pH DETECTOR SYSTEM AND RELATED METHODS - Fluorescent pH detector and methods for measuring pH using the fluorescent pH detector. | 12-20-2012 |
| 20120329169 | HALOGEN AND HEAVY METAL-FREE COMPOSITION FOR A HUMIDITY INDICATING DEVICE AND HUMIDITY INDICATING DEVICE CONTAINING THE SAME - The disclosed invention is a composition for a humidity indicating device comprising
| 12-27-2012 |
| 20130295681 | DEVICE, SYSTEM AND METHOD FOR MEASURING HOMEOSTASIS, VITALITY, ENERGY AND STRESS IN AN INDIVIDUAL OR SUBSTANCE - The present invention relates to a device, system and a method for evaluating, measuring and assessing vitality, energy and stress levels in an individual and/or substance, and in particular, to such a device, system and method in which personal assessment and decision support is provided based on the measured levels of vitality, energy and stress. | 11-07-2013 |
| 20140004619 | Systems, Methods And Apparatus For Analysis of Multiphase Fluid Mixture In Pipelines | 01-02-2014 |
| 20140030815 | PINHOLE INSPECTION SYSTEM AND APPARATUS FOR MEMBRANE ELECTRODE ASSEMBLY OF FUEL CELL - Disclosed is a pinhole inspection apparatus, system and method for a membrane electrode assembly of a fuel cell, which can easily detect the position of a pinhole using water and a pH test paper from discoloration caused when the water is in contact with the pH test paper through the pinhole, thus solving the existing problems and allowing the membrane electrode assembly to be reused after the inspection. In particular, a lower fixture is configured to support the membrane electrode assembly and water is uniformly distributed on an upper surface of the membrane electrode assembly. A pH test paper is inserted between the membrane electrode assembly and the lower fixture and discolored upon coming in contact with water that passes through a pinhole in the membrane electrode assembly, thus detecting the presence and position of the pinhole. | 01-30-2014 |
| 20140051177 | FIBER OPTIC PROBE AND MEASURING SENSOR USING SAID PROBE - The fiber optic probe ( | 02-20-2014 |
| 20140080222 | FLUORESCENT DYE FOR PH SENSOR - The present invention relates to a new type of fluorescent with the following formula (I), its preparation process, and also an optical pH sensor which comprises this fluorescent dye immobilized on an analyte-permeable carrier. | 03-20-2014 |
| 20140106464 | METHOD AND APPARATUS FOR ANALYZING ALKALINITY CONDITIONS IN AQUEOUS LIQUIDS - Method for analyzing the alkalinity conditions in aqueous liquids, comprising: sampling a known amount of the aqueous liquid and placing it in a container of known volume, measuring pH in the sampled liquid and pressure in the container, adding a known amount of CO | 04-17-2014 |
| 20140154815 | Luminescent Compounds, Complexes and Their Uses - A method of changing the fluorescent properties of a complex, the method comprising: providing a first complex comprising a multidentate ligand that is coordinated to a lanthanide ion, wherein the lanthanide is selected from europium and terbium and the multidentate ligand has at least one optionally substituted phthalimide group coordinated to the lanthanide ion, contacting the complex with an aqueous liquid medium under appropriate conditions, such that at least one phthalimide group is hydrolysed to a phthalamate group, to form a second complex. Complexes and compounds are also disclosed. | 06-05-2014 |
| 20140199775 | DEVICE AND METHOD FOR MONITORING THE CONDITION OF SUBSEA PARTS, PARTICULARLY CABLE CONNECTORS - A subsea monitoring device comprises a metal part ( | 07-17-2014 |
| 20140220699 | pH BUFFER MEASUREMENT SYSTEM FOR HEMODIALYSIS SYSTEMS - A pH-buffer measurement system that has at least one source for modifying the pH of a fluid entering the system, the source selected from an acid source and a base source. The acid source adds an acid equivalent to provide an acid reacted fluid and the base source adds a base equivalent to provide a base reacted fluid. The source is in fluid communication with a flow path and a component for determining a fluid characteristic of the acid reacted fluid or the base reacted fluid. The fluid characteristic that is measured is any one of a gas phase pressure, an electrical conductivity, or thermal conductivity. | 08-07-2014 |
| 20140256055 | EXPLORATION METHOD AND SYSTEM FOR DETECTION OF HYDROCARBONS - A method for detecting hydrocarbons is described. The method includes performing a remote sensing survey of a survey location to identify a target location. Then, an underwater vehicle (UV) is deployed into a body of water and directed to the target location. The UV collects measurement data within the body of water at the target location, which is then analyzed to determine whether hydrocarbons are present at the target location. | 09-11-2014 |
| 20140273265 | MICROFLUIDIC ANALYTE DETECTION CARTRIDGE DEVICE, SYSTEM AND METHOD - A microfluidic cartridge for assaying an analyte comprises one or more test channels, each having a lumen; one or more reference solution channels in fluid communication with the test channels; one or more sample channels in fluid communication with the test channels; one or more sensors at least partially exposed in the lumen of the test channels; and a processor coupled to the one or more sensors for measuring properties of the analyte to determine at least one of an identity, concentration, dose, and dosage of the analyte. | 09-18-2014 |
| 20140302615 | MATERIAL FOR LITHIUM SECONDARY BATTERY OF HIGH PERFORMANCE - Provided is a cathode active material containing a Ni-based lithium mixed transition metal oxide. More specifically, the cathode active material comprises the lithium mixed transition metal oxide having a composition represented by Formula I of Li | 10-09-2014 |
| 20140356974 | COATINGS FOR MEASURING PH CHANGES - A pH detectable coating. The pH detectable coating includes a pH insensitive fluorescent dye and a pH sensitive fluorescent dye. The pH insensitive fluorescent dye and the pH sensitive fluorescent dye are attached to a surface. The ratio of the fluorescent intensity of the pH insensitive fluorescent dye to the fluorescent intensity of the pH sensitive fluorescent dye varies according to the pH of an environment into which the surface is placed. | 12-04-2014 |
| 20150011010 | OPTODE FOR DETERMINING CHEMICAL PARAMETERS - The invention is related to an optode for determining chemical parameters of a sample wherein the optode consists of a polymer matrix consisting of sulfonated polyether ether ketone (SPEEK) in which a sensor dye is immobilized or more than one sensor dye is immobilized, wherein at least one of the immobilized sensor dyes is pH-sensitive. | 01-08-2015 |
| 20150024508 | APPARATUS AND METHOD FOR COMPENSATING pH MEASUREMENT ERRORS DUE TO PRESSURE AND PHYSICAL STRESSES - A pH sensing apparatus includes an ion-sensing cell that includes a first half-cell including a first Ion-Sensitive Field Effect Transistor (ISFET) exposed to a surrounding solution; and a second reference half-cell exposed to the surrounding solution. The pH sensing apparatus further includes a pressure sensitivity compensation loop including a Non Ion-Sensitive Field Effect Transistor (NISFET). The pH sensing apparatus is configured to compensate for at least one of pressure and physical stresses using signals from the ion-sensing cell and feedback from the pressure sensitivity compensation loop. The pH sensing cell further includes a processing device configured to calculate a final pH reading compensated to minimize the at least one of pressure and physical stresses. | 01-22-2015 |
| 20150024509 | METHOD AND APPARATUS FOR MEASURING CHEMICAL ION CONCENTRATION USING A FEEDBACK- CONTROLLED TITRATOR - There is provided a method and device for measuring an ion concentration of a sample. The method comprises exposing a chemical sensor to the sample to provide an electrical output signal | 01-22-2015 |
| 20150044776 | pH SENSORS - Provided herein are fluorescent sensor agents, and methods of use and manufacture thereof. In particular, sensor agents are provided that exhibit a detectable change in fluorescence (e.g., fluorescence intensity) upon alteration of the pH of the surrounding environment (e.g., upon moving from one pH environment to another). | 02-12-2015 |
| 20150308994 | PH INDICATOR DEVICE AND FORMULATION - Disclosed herein are devices and methods for determining the pH of fluid. Example devices include a device comprising a surface configured to contact the fluid and a pH indicator covalently bound thereto, wherein the pH indicator has a first colour prior to contact with the fluid and changes colour as a function of the pH of the fluid. | 10-29-2015 |
| 20150316486 | METHOD FOR AUTOMATICALLY MEASURING CONCENTRATION OF DISSOLVED SUBSTANCE - In measuring a dissolved substance, a concentration of a specific dissolved substance in a sample water is measured using a measuring water W | 11-05-2015 |
| 20150329096 | METHODS AND KITS FOR TESTING BRAKE FLUID - The present invention provides methods and kits for assessing whether brake fluid in a vehicle should be replaced, evaluating the degradation of brake fluid, and assessing the virtual age of brake fluid. The methods feature obtaining a sample of brake fluid from a vehicle; measuring the pH of the brake fluid; and assessing whether the brake fluid in the vehicle should be replaced, evaluating the degradation of brake fluid, or assessing the virtual age of brake fluid. The brake fluid is determined to be in need of replacement or degraded beyond safe levels if the pH of the brake fluid is less than about 6.5, 6.25, 6.0, 5.9, 5.8, 5.75, 5.7, 5.6, or 5.5. | 11-19-2015 |
| 20150362437 | HYDROGEL, PREPARATION METHOD THEREOF, AND pH SENSOR COMPRISING THE SAME - The present invention relates to a hydrogel, a preparation method thereof, and a pH sensor comprising the same, and more particularly, to a hydrogel, which can substitute for conventional pH paper, is continuously usable, can be used in various applications, and reversibly changes color depending on the pH of a sample, and to a pH sensor comprising the same. The hydrogel comprises: a polymer complex wherein a first organic compound containing an aromatic functional group having at least one hydroxyl group bonded thereto is joined to a carboxyl group-containing polysaccharide by a peptide bond; and an organic dye comprising a second organic compound containing an aromatic functional group having at least one hydroxyl group bonded thereto. | 12-17-2015 |
| 20160027846 | THREE-DIMENSIONAL NETWORKS COMPRISING NANOELECTRONICS - The present invention generally relates to nanoscale wires and three-dimensional networks or structures comprising nanoscale wires. For example, certain embodiments are directed to three-dimensional structures comprising nanoscale wires. The structures may be porous and define electrical networks wherein the nanoscale wires can be determined or controlled. Other materials, such as inorganic materials, polymers, fabrics, etc., may be disposed within the three-dimensional structure, and in some embodiments, such that the three-dimensional structure is embedded within the material. The nanoscale wires may thus be used, for example, as sensors within the material. Other embodiments of the invention are generally directed to the use of such articles, methods of forming such articles, kits involving such articles, or the like. | 01-28-2016 |
| 20160077014 | AUTOMATIC TITRATOR - The present invention generally relates to continuous methods quantifying a target analyte concentration in a process solution. These methods are continuous automated titration methods that use titration chemistries to measure the target analyte concentration in the process solution. The method steps provide for efficient and robust automated titration methods for a variety of target analytes. | 03-17-2016 |
| 20160116448 | pH-MODULATED QUENCHERS OF FLUORESCENCE - The present disclosure relates to a compound of formula (I) | 04-28-2016 |
| 20160202155 | Apparatus for, System for and Methods of Maintaining Sensor Accuracy | 07-14-2016 |
