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7531361 |
Coloration agent for carbonyl sulfide, detecting means and fuel cell system
Provided are a coloration agent for carbonyl sulfide which contains a metal oxide, and at least one metal component selected from among a cerium component, a silver component, a copper component, a...
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7487662 |
Volatile organic compound sensor system
Generally, this invention relates to the development of field monitoring methodology for new substances and sensing chemical warfare agents (CWAs) and terrorist substances. It also relates to a...
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7247699 |
Process for purification of crude polyether and adsorbent
A process for purifying a crude polyether, comprising contacting a crude polyether obtained by addition polymerizing an active hydrogen-containing compound with an alkylene oxide compound in the...
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7074365 |
Detector for halogen toxicants and method
The invention herein provides for the detection of certain organic halogen-containing agents or toxicants such as sarin, chloropicrin, mustard gas, mustard chlorohydrin, phosgene, chlorine, soman,...
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7049149 |
Biological marker for stress states
The object of the invention is to propose a novel biomarker for stress states, which biomarker is highly meaningful and capable of enabling quantitative measurements to be made of stress levels. To...
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7026166 |
Fluorogenic dyes
The present invention relates to the use of fluorogenic or chromogenic dyes as reporter molecules for detecting cell entry by a specific molecule.
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6998271 |
Luminescent sensory material for organic-halogen compounds, and methods and apparatus utilizing such
A luminescent sensory material for the detection of the presence of organo-halogen compounds is described. This material is based on a platinum chromophore functionalized with pyridylacetylide...
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6815206 |
Container monitoring system
A sterilization system uses a sterilization process monitoring device which is capable of indicating the efficacy of the sterilization process. To enhance accuracy of the monitoring function, the...
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6599747 |
Soil test
A test for determining the bioavailable fraction of an organic pollutant present in soil comprises determining the fraction of the organic pollutant present in the soil which may be extracted by a...
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6589796 |
Method for measuring iodine and reaction instrument for specimen pretreatment
A iodine-measuring method for determining or detecting iodine concentration in a specimen, comprising a specimen-pretreating step of thermally digesting a specimen together with an oxidizing agent,...
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6436311 |
Sampling material for a carbonyl compound in a gas
A sampling material for a carbonyl compound in a gas comprising a reagent capable of converting a carbonyl compound to a derivative thereof supported on a cation exchanger; and a sampling cartridge...
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6060325 |
Detection and monitoring of toxic halogenated compounds
The present invention is directed to a method for determining the halogen toxicity level in a sample containing halogenated compounds, specifically halogen containing rubbers by utilizing thermal...
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5962334 |
Process for extracting 2,3,7,8-tetrachlorodibenzo-p-dioxin
A process for the extraction and purification of TCDD (2,3,7,8-Tetrachlorodibenzo-p-dioxin) from a sample matrix. The process of the present invention overcomes a problem of prior art processes for...
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5942439 |
Method for isotopic analysis of chlorinated organic compounds
The present invention provides a method for preparing a VOC sample for carbon and chlorine isotope ratio analysis by mass spectrometer. A VOC sample is placed in a combustion tube and reacted with...
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5866073 |
Detector of halogenated compounds based on laser photofragmentation/fragment stimulated emission
A method and apparatus is provided for real-time detection of trace amounts of atmospheric and tropospheric halogen-containing compounds. The present invention can be used either for in situ...
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5766952 |
Vapochromic platinum-complexes and salts
The present invention relates to a process for indicating the presence of organic vapors comprising the steps of determining the color, absorption or emission spectra of a Pt--Pt double-complex...
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5759820 |
Process for producing cDNA
The process includes the steps of: a) contacting a liquid containing mRNA with an insoluble support having DNA probes attached thereto via the 5' -terminus thereof whereby the MRNA is hybridized to...
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5679576 |
Gas chromatographic analysis of fluoromethyl-1,1,1,3,3,3-hexafluoroisopropyl ether
The present invention provides a method in which organic matter in the product accompanied with a non-reacted hydrogen fluoride can be handled without damaging the apparatus, using a cross-linked...
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5665555 |
Method of determining the effect of a test substance on a clone of a Centroptilum triangulifer mayfly
A method of determining the effect of a test substance on any life stage of at least one clone of a Centroptilum triangulifer mayfly comprising (A) identifying and selecting at least one clone of...
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5641686 |
Flow injection trace gas analysis method for on-site determination of organoarsenicals
A method for real-time determination of the concentration of Lewisite in the ambient atmosphere, the method includes separating and collecting a Lewisite sample from the atmosphere in a collection...
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5601979 |
Prepasration and use of magnetic controlled pore glass having oligonucleotides synthesized thereon
A functionalized, magnetic controlled pore glass support useful in solid phase DNA synthesis is described. The support acts as a universal solid phase for direct oligonucleotide synthesis. The...
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5599716 |
Measurement of radioactive content of waste and plant items by radiolytic transformation of reactant gases
A process for the measurement of the level of radioactivity of a solid by contacting the solid with a chemically stable reactant fluid. The reactant fluid is converted by nuclear radiation to a...
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5576217 |
Solid phase microextraction of trace amounts of organic analytes
A method for enhancing detection sensitivity of suspected trace amounts of organic analytes and particularly semivolatile organic analytes extractable from a sample by an organic solvent carrier...
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5576216 |
Universal standard reagents, method of preparing same and use thereof
A universal standard chemical reagent for quantitative visual and spectrometric analysis of compounds having reactive functional groups, including mixtures and homologs of said compounds, said...
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5547877 |
Methods for the rapid detection of toxic halogenated hydrocarbons and kits useful in performing the same
Methods for the detection, identification and/or quantitation of halogenated hydrocarbons in aqueous samples and kits for performing the methods are provided which provide high sensitivity and can...
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5536172 |
Quantification of photoreactive aromatic compounds
A method for determining the amount of photoreactive polynuclear aromatic compound in a sample is described. A sample containing an unknown amount of a photoreactive polynuclear aromatic compound...
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5525520 |
Photo-activated luminescence sensor and method of detecting trichloroethylene and related volatile organochloride compounds
A sensor for detecting trichloroethylene and related volatile organochloride compounds uses a photo-activator that produces a photo-product complex with the contaminant. Characteristics of the...
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5514595 |
Method for analyzing refrigerant properties
One or more properties of a refrigerant sample, such as composition, purity or both composition and purity, are analyzed for purposes of refrigerant recovery and reuse by providing a refrigerant...
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5490971 |
Chemical detector
Apparatus for chemical detection includes a cap for coupling with a sample vial containing a sample. The sample includes at least one chemical to be detected. The cap includes a reagent vial which...
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5469714 |
Method and apparatus for analyzing refrigerant properties
One or more properties of a refrigerant are analyzed by evacuating a refrigerant sample vessel, drawing a refrigerant vapor sample into the vessel, and condensing the refrigerant sample within the...
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5457056 |
Halohydrocarbon sensing chemistry with base modifier
A base modifier is added to a pyridine/base reagent composition to improve the ability to detect halogenated hydrocarbons like TCE and chloroform. The base modifier is an organic base which...
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5427955 |
Photochemical determination of organic compounds
A method for measuring or detecting halogenated organic compound content. For example, the method can be used to identify polychlorinated biphenyls ("PCB's"), contaminating soil or oil. The method...
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5368819 |
Automated process chloride analyzer
An automated analysis system is provided for the determination of impurities in a liquified hydrocarbon stream. The system employs a hydrocarbon capture vessel for capturing a hydrocarbon sample, a...
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5338685 |
Process for the continuous quantitative determination of fluorine-containing compounds
A process for the continuous quantitative determination of the concentration of fluorine-containing compounds in gases by treating a gas that contains a fluorine-containing compound with an aqueous...
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5318751 |
Enhanced photo-activated luminescence for screening polychlorobiphenyls (PCBs) and other related chlorinated compounds
The presence of polychlorinated biphenyls and other chlorinated compounds in a sample is determined by treating the sample with a photo-activator and then exposing the treated sample to a UV light...
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5275956 |
Method of measuring concentration of organic chlorine compound by chemiluminescence
The concentration of an organic chlorine compound contained in a gaseous medium is measured in situ by feeding the gaseous medium to a reaction zone and oxidizing the chlorine compound to produce a...
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5273909 |
Immunoassay for the detection of small aliphatic organic compounds
Antibodies are raised against immunogens which include an aromatic ring moiety, preferably the compound 6-aminohexyl-p-tolylacetamide, which immunologically cross-react with small aliphatic organic...
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5260220 |
Method and apparatus for monitoring impurities in a liquified hydrocarbon stream
An automated analysis system for the determination of impurities in a liquified hydrocarbon stream. The system employs a hydrocarbon capture vessel for capturing a hydrocarbon sample, a water...
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5158880 |
Process for preparing solid perfluorocarbon polymer supports having attached perfluorocarbon-substituted ligand or binder
A process for preparing solid perfluorocarbon polymer supports permitting uniform and secure attachment of perfluorocarbon-substituted ligands or binders to carriers is provided utilizing...
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5128269 |
Method for monitoring unusual signs in gas-charged apparatus
A method for monitoring unusual signs such as partial heatings and partial electric discharges in an apparatus to be monitored, in which a sealed gas is enclosed into a tank containing the...
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5100804 |
Method for determining chloroformate concentration
The molar concentration of chloroformate in an organic chloroformate solution is determined by adding an excess of a monohydroxyaromatic compound, water and a catalytic amount of a...
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5094819 |
Fluorescence-based optical sensor and method for detection of lipid-soluble analytes
A sensor, probe, system and method for detecting the presence of or concentration of lipid-soluble analytes such as anesthetics, which involve the use of fluorophore-containing lipid layers or...
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5094817 |
Apparatus for quantitative determination of trihalomethanes
An apparatus for quantitative determination of trihalomethanes comprises a separation unit containing two channels in contact with each other via a microporous membrane that will not react with...
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5086168 |
Monoazo pigments derived from diazotized di- or trichloroanilines, preparation thereof and their use
The invention relates to monoazo pigments prepared from dichloroanilines as diazo components and CH-acidic coupling components of the acetoacetarylamide or naphthol series, these pigments only...
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5013667 |
Apparatus and method for measuring halogen content
An apparatus, which may be embodied in a disposable field test kit, and a test method serves to measure the halogen (bromine, chlorine, iodine) content, especially the chlorine content, of...
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5000920 |
Device for the heat treatment of gaseous test samples
A heat treatment device for the conversion of gaseous test samples into constituents determinable by a detector provides the possibility of obtaining the desired pyrolysis products even during the...
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4960711 |
Method for the quantitative determination of trihalomethanes
An apparatus for quantitative determination of trihalomethanes comprises a separation unit containing two channels in contact with each other via a microporous membrane that will not react with...
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4946649 |
Colorimetric gas diffusion testing tube
A colorimetric gas diffusion testing tube is disclosed that is to be opened at one end and that contains a granular indicator layer. The testing tube detects a gas that does not directly change the...
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4944921 |
Automated PCB analyzer system
Method and apparatus for the detection and quantitation of polychlorinated biphenyls (PCB's) utilizing sample preparation by treatment with predetermined quantities of sulfuric acid and lower...
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4929562 |
Method and apparatus for detecting gem-polyhalogenated hydrocarbons
A method and optrode for detecting gem polyhalogenated hydrocarbons in a sample fluid based on a single phase Fujiwara reaction as provided. The method comprises contacting a reaction mixture with...
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