Matches 1 - 41 out of 41


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US20120107945 CHEMICAL REAGENT FOR MEASURING THE LEVEL OF HALOGEN AGENTS, IN PARTICULAR IN SWIMMING-POOL WATER AND ASSOCIATED MEASUREMENT METHOD  
The present invention relates to a chemical reagent for measuring the halogen-agent content, in particular in swimming pool water, and also to an associated measurement method, and such that the...
US20130337573 METHOD FOR EVALUATING CHEMICAL STABILITY OF POLYCHLOROPRENE LATEX  
Provided is a method for evaluating of the chemical stability of a polychloroprene latex that permits evaluation of the chemical stability of polychloroprene at high accuracy. First, an aqueous...
US20150064732 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...
US20110217788 CHEMICAL REAGENT FOR MEASURING THE LEVEL OF HALOGEN AGENTS, IN PARTICULAR IN SWIMMING-POOL WATER AND ASSOCIATED MEASUREMENT METHOD  
The invention relates to a method of monitoring a concentration of a halogenated disinfectant in swimming pools or the like and a device for implementing the method. The method comprises: a...
US20150050195 CHLORINE ANALYTICAL TEST ELEMENT AND A STABILIZED N, N-DIETHYL-P-PHENYLENEDIAMINE SOLUTION  
A test element (10) used to determine concentration levels of free and total chlorine in a water sample comprises a test pad (12) adhered to a substrate (14), wherein the test pad (12) is...
US20140342461 WATER CHEMISTRY TEST KIT APPARATUS AND RELATED METHODS  
Methods and apparatus are disclosed for an improved water chemistry test. Features disclosed include, without limitation, a test block, colored liquid reagents, and color comparison displays, with...
US20140295568 REAGENT FOR DETECTION AND ASSESSMENT OF TOTAL CHLORINE IN AQUEOUS SOLUTION  
Provided is a heat dried reagent composition that is dry, methods of making it, and methods of using it. The heat dried reagent composition can be characterized by one or more of: stability to the...
US20140295569 REAGENT FOR DETECTION AND ASSESSMENT OF FREE CHLORINE IN AQUEOUS SOLUTION  
Provided is a heat dried reagent composition that is dry, methods of making it, and methods of using it. The heat dried reagent composition can be characterized by one or more of stability to the...
US20120237611 SYNERGISTIC PEROXIDE BASED BIOCIDAL COMPOSITIONS  
Disclosed is a method for controlling microbial growth in an aqueous system containing sulfite and/or bisulfite residues by addition of a peroxy compound at a pH of grater than 5. Also disclosed...
US20070082405 Method for determining chlorine demand in water  
Methods for determining chlorine demand in water are provided. One method comprises (a) providing a test water sample containing at least one contaminant and a source of chlorine and a source of...
US20120064634 Chromium-Free Indicating Device for Chloride Detection  
A chemical indicating device (10) for detection of chloride ions in a sample is provided. The chemical indicating device (10) includes a carrier matrix (12) and an indicator (14) having silver and...
US20120288954 Chromium-Free Indicating Device  
A chemical indicating device (10) for detection of chloride ions in a sample is provided. The chemical indicating device (10) includes a carrier matrix (12) and an indicator (14) having silver and...
US20130122597 SIMULTANEOUS DETERMINATION OF MULTIPLE ANALYTES IN INDUSTRIAL WATER SYSTEM  
A multi-purpose reagent composition is used for simultaneously determining concentrations of at least two analytes in a water sample. The two analytes are selected from the group consisting of...
US20140110340 TOTAL CHLORINE WATER DETECTION SYSTEM AND METHOD FOR MEDICAL FLUID TREATMENTS  
A system and method for determining a concentration of total chlorine in dialysis water are provided. The system comprises a main unit housing a KI/water sample chamber and a sodium sulfate...
US20070224691 Composition for measuring concentration of residual chlorine  
The present invention provides a composition for measuring residual chlorine concentration in the sample water, which is an aqueous solution comprising a specific benzidine compound, e.g.,...
US20090047743 Method and system for determining residual chlorine or chloramine concentration in solution by colorimetey  
A kit for determining residual chlorine or chloramine amount of a sample; comprising: a means for containing a PVA solution as an indicator, and another means for containing a reducing indicator....
US20140199773 DETECTION METHOD USING COLORIMETRIC ANALYSIS  
A detection method using colorimetric analysis of the present invention includes: providing a first solution in which two materials selected from metal nanoparticles, an oxidizing agent, and...
US20130309775 POLYMER FOR FILLER FOR PREPROCESSING COLUMN  
It is a subject of the present invention to provide a novel polymer; a filler for measuring a perfluoro compound having an acidic group at terminal which comprises said polymer; a column filled...
US20100216118 Method of Detection/Extraction, and Related Detection/Extraction Device  
A method that uses an L-α-dipalmitoleoyl-phosphatidylcholine (DPPC) surfactant based device that reacts with a substance in a known manner, to detect a substance of interest or to extract a...
US20100059423 CHEMICAL ANALYSER  
A liquid sample is analysed for a target chemical. A sample solution is added to a measurement cell of known volume and a reagent is incrementally added to the cell until a detectable change is...
US20120178171 METHODS OF USING CYANINE DYES FOR THE DETECTION OF ANALYTES  
The present invention concerns a method of measuring the concentration of an analyte in an aqueous solution that comprises the steps of: obtaining an aqueous solution containing an analyte,...
US20090017549 Apparatus and Method for Determining The Concentration of Iodine-Containing Organic Compounds in an Aqueous Solution  
A method for determining the amount of a known iodine-containing organic compound in an aqueous solution. The method comprises electrochemically reducing the known iodine-containing organic...
US20080171392 IN SITU TEST FOR DETERMINING DRUG HISTORY  
The present invention relates generally to kits, compositions and methods useful in the qualitative analysis of the presence of chemicals used and produced in the manufacture of illegal drugs. The...
US20130210158 QUATERNARY NITROGEN HETEROCYCLIC COMPOUNDS FOR DETECTING AQUEOUS MONOSACCHARIDES IN PHYSIOLOGICAL FLUIDS  
Quaternary nitrogen heterocyclic boronic acid-containing compounds are described, which are sensitive to glucose and fructose, as well as a variety of other physiologically important analytes,...
US20080153173 Method and Device for Determining the Concentration of Organically Bound Halogens  
In a method for determining the concentration of organically bound halogens present in waste water, a pre-specified amount of waste water is withdrawn and converted into a measurement sample. A...
US20140087476 OPTICAL SENSOR FOR BROMIDE ION  
Methods and systems to determine a concentration of bromide ions in an aqueous sample are disclosed. The method involves the oxidation of bromide ions to bromine, followed by bromination of a...
US20100040913 APPARATUS AND METHOD FOR DETERMINING DETERIORATION OF A FUEL CELL AND METHOD FOR PREVENTING DETERIORATION OF THE SAME  
The present invention provides an apparatus and method for determining deterioration of a fuel cell, the method including measuring in real time fluoride ion concentration or pH value of outflow...
US20050079484 Method of detecting biological materials in liquid  
The present invention provides a method of detecting targeted agents in liquid, and in particular, the detection of targeted biological agents in finished water and other liquids. The methods...
US20140099727 Method and apparatus for determination of haloacetic acid ("HAA") presence in aqueous solution  
Techniques related to printing using a metal-surface charging element. A printing system includes a metal-surface charging element and a power supply. The charging element is disposed to deposit...
US20150260655 METHODS FOR MEASURING CONCENTRATIONS OF CHLORINATED SOLVENTS THROUGH RAMAN SPECTROSCOPIC OBSERVATION OF THE VIBRATIONAL MODES OF WATER  
Method for determining concentration of a chlorinated solvent in a non-turbid aqueous solution sample containing the chlorinated solvent is disclosed. The method includes developing a calibration...
US20170131256 CARBOXYLATE-BRIDGED BINUCLEAR IRON-SULFUR CLUSTERS FLOURESCENT PROBE, PREPARATION METHOD AND APPLICATION THEREOF  
The present invention provides a carboxylate-bridged binuclear iron-sulfur clusters fluorescent probe having the structure of Formula I. The preparation method comprises the following steps:...
US20160238582 METHODS AND SYSTEMS FOR MEASURING ANIONS  
Embodiments of the present disclosure provide for methods for detecting the presence and/or concentration of anions in a solution, systems for detecting the presence and/or concentration of anions...
US20160169847 Techniques for determination of haloacetic acid ("HAA") presence in aqueous solution  
A real-time method and analytical system for determining haloacetic acids in water which operate by: (1) extracting samples on ion-exchange absorbent medium; (2) concentrating haloacetic acids on...
US20160123889 Methods and Apparatus for Determination of Halohydrocarbons  
A real-time, on-line method and analytical system for determining halohydrocarbons in water which operate by (1) extracting on-line samples; (2) purging volatile halohydrocarbons from the water...
US20160109359 DEVICE FOR MULTIPLE TESTS FROM A SINGLE SAMPLE  
A sample device and method for analyzing a sample are claimed. The sample device is a flat disc containing channels and wells for directing a sample to reagents located in the disc and for mixing...
US20160084809 SIMULTANEOUS DETERMINATION OF MULTIPLE ANALYTES IN INDUSTRIAL WATER SYSTEM  
A multi-purpose reagent composition is used for simultaneously determining concentrations of at least two analytes in a water sample. The two analytes are selected from the group consisting of...
US20160011216 BIOSENSORS INCLUDING SURFACE RESONANCE SPECTROSCOPY AND SEMICONDUCTOR DEVICES  
A sensor including a surface plasmon resonance detector with a reservoir for containing a liquid sample. The sensor further includes a sensing metallic film positioned within the reservoir so that...
US20150355153 PHENYLACETYLENES  
A compound, or a protonate or salt thereof, having the formula of: wherein R1 is an optionally substituted aromatic group;n is 1 or 2;each R2 is independently selected from an optionally...
US20150268171 METHOD AND APPARATUS FOR THE DETECTION OF EXPLOSIVES  
A method for the colorimetric detection of two compounds in a bulk sample comprises the steps of forming an aqueous solution of the bulk sample, inserting a single dip strip having a pair of test...
US20130029427 Methods and Apparatus for Determination of Halohydrocarbons  
A real-time, on-line method and analytical system for determining halohydrocarbons in water which operate by (1) extracting on-line samples; (2) purging volatile halohydrocarbons from the water...
US20120142113 METHOD AND APPARATUS FOR DETERMINATION OF SYSTEM PARAMETERS FOR REDUCING CRUDE UNIT CORROSION  
The invention provides a method and apparatus for determining the amount of various materials in a liquid sample. Because the apparatus is particularly resilient it can be used repeatedly with...

Matches 1 - 41 out of 41