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4840895 Monoclonal antibodies reactive with immune complexes  
A secondary monoclonal antibody against a complex of a molecule of molecular weight less than 5000 and a binding protein against said molecule which secondary monoclonal antibody is not an...
4840893 Electrochemical assay for nucleic acids and nucleic acid probes  
The present invention discloses an assay for nucleic acid which comprises the steps of; (a) providing a probe material comprising; (i) a sequence of nucleic acids complementary to a given target...
4830960 Determination of chlamydia trachomatis  
A process for determining qualitatively or quantitatively the presence of Chlamydia Trachomatis or Chlamydia trachomatis derived material in a subject material which process comprises deriving a...
4824779 Method for the determination of the reduced form of nicotinamide adenine dinucleotide  
The present invention provides a method for the determination of NAD(P)H which comprises reacting a chromogen represented by the following general formula (I): ##STR1## wherein Y is hydrogen or...
4820634 Immunoassay method and immunoreactive cell reagent  
Immunoassay which can be performed within a short period of time and a reagent composition for such immunoassay. The reagent composition contains complement and cells which contain quantitatively...
4820630 Assay for nucleic acid sequences, particularly genetic lesions, using interactive labels  
Lesions in genetic sequences, for example, the sickle cell anemia mutation in the beta globin gene, are detected by means of interactive labels in a nucleic acid hybridization assay. A signal is...
H000622 Analytical element for measuring activity of creatine kinase  
In a dry analytical element for the determination of creatine kinase enzymatic activity is disclosed, comprising at least one porous medium and at least one water permeable layer having a liquid...
4816394 Quantitative analysis of 3α-hydroxysteroid and reagent useful therefor  
A 3α-hydroxysteroid contained in a sample can be quantitatively analyzed by causing a 3α-hydroxysteroid dehydrogenase to act on the sample in the presence of nicotinamide adenine dinucleotide,...
4816393 Nucleoside triphosphate-dependent 1-methylhydantoinase, a process for obtaining it and the use thereof  
The present invention provides 1-methylhydantoinase, which hydrolyses 1-methylhydantoin in the presence of a nucleoside triphosphate and of polyvalent metal ions.The present invention also...
4810640 Method of quantitative assay for 1,5-anhydroglucitol  
The present invention relates to a method of quantitative assay for 1,5-anhydroglucitol which comprises oxidizing 1,5-anhydroglucitol in an aqueous solution of a specimen in the presence of an...
4810641 Biochemical assays  
Components of gaseous mixtures, which are present in the gas as a fluid, e.g. a gas, vapor or mist are assayed biochemically by conducting an enzymatic reaction wherein the fluid substrate is...
4808517 Bioassay for toxic substances  
An assay method is disclosed to test for the presence of toxic substances in environmental samples. The assay uses a suspension of mitochondrial membranes carrying enzymes which can be driven by...
4808529 Enzymes immobilized on polyamides or cellulose hydrate  
Proteins such as enzymes are attached directly to a polyamide or cellulose hydrate carrier. Attachment can be carried out by impregnation of the carrier with a protein solution. The carrier can be...
4806415 Method and system for determining the presence of adenosine triphosphate or flavin mononucleotide  
An enzymatic determination of one of the co-enzymes adenosine triphosphate (ATP) or flavin mono-nucleotide (FMN) based on the use of an flavine adenine dinucleotide (FAD) synthetase-active system...
4803159 Analytical element and method for determination of total lacate dehydrogenase  
A multilayer analytical element exhibits improved precision in the assay of total lactate dehydrogenase (LDH). The element also provides reduced susceptibility to total protein and hemoglobin...
4803158 Composition used for the determination of beta-hydroxybutyric acid and a method for preparing the said composition  
This invention relates to a composition for determining β-hydroxybutyric acid, usable for doctors, nurses, and patients themselves simply and quickly without use of special instruments, and also...
4791057 Highly sensitive enzymatic assay method  
A highly sensitive quantitative assay method for a component which is 3β-hydroxysteroid or 3-ketosteroid, in a specimen to be assayed, comprising causing this component in the specimen to take...
4786589 Immunoassay utilizing formazan-prelabeled reactants  
An immunoassay procedure utilizing a formazan-labeled primary antibody to detect the presence of an antigen is disclosed. The formazan-labeled antibody is dissolved in a test fluid suspected to...
4786596 Method of preparing a test strip for alcohol testing  
Ethyl alcohol test strip fabricating and use techniques for testing an individual's saliva to determine his sobriety are disclosed. The test strips employ an alcohol oxidase, Peroxidase and an...
4783400 Homogeneous enzyme immunoassay system and method  
A liposome assay reagent for determination of an analyte in a homogeneous immunoassay. The reagent includes a suspension of oligolamellar lipid vesicles containing encapsulated glucose-6-phosphate...
4782020 Process for the continuous enzymatic conversion of alpha-hydrocarboxylic acids into the corresponding optically active alpha-aminocarboxylic acids  
α-Hydroxycarboxylic acids are continuously converted into the corresponding optically active α- aminocarboxylic acids. The conversion is carried out in a membrane reactor in the presence of...
4778754 Reagent for determining the amount of magnesium ions  
Disclosed is a reagent for determining the amount of magnesium ions, comprising glucokinase, adenosine-5'-triphosphate, glucose, glucose-6-phosphate dehydrogenase and oxidized-form nicotinamide...
4778755 Immunoassay method  
In the determination of the quantity of enzyme present as a result of an immunoassay procedure, the enzyme containing component is combined with a substrate which in the presence of the enzyme...
4777131 Method of determining sugar content of tobacco using a discrete analyzer  
A method of determining in a discrete analyzer the total sugars content of a tobacco sample containing sucrose, glucose and fructose, comprises the steps of, converting the sucrose to glucose and...
4770998 Biochemical assay of aldehydes  
This invention provides a biochemical method for determining the presence of toxic or mutagenic aldehyde in a test article. A sample of the test article is treated with an aldehyde dehydrogenase,...
4769321 Assay method and reagent therefor  
Enzymatic assays are described which enable the detection of inter alia enzymes, cofactors and substrates in small quantity with the ability to produce a visually detectable change.
4758323 Assay systems using more than one enzyme  
This specification discloses methods of detection or measurement of an enzyme or of its specific substrate, and sensors used in such methods. The present invention is concerned with a multi-enzyme...
4746605 Process and a reagent for the determination of low density lipoproteins (LDL)  
A method for determining low density lipoproteins (LDLs) in a body fluid sample, as well as a reagent suited for this use, are taught. The method involves precipitating high density lipoproteins...
4743561 Luminescent assay with a reagent to alter transmitive properties of assay solution  
An improved method and reagents are disclosed for determining a ligand in an assay solution containing the ligand, a reagent system and a luminescent compounds, wherein the intensity of the light...
4740458 Reagent for assaying creatine kinase  
A reagent system for assaying creatine kinase is disclosed. The reagent system consisting essentially of a first reagent comprising glucose-6-phosphate dehydrogenase, β-nicotinamideadenine...
4735895 Cancer susceptibility test  
The present invention relates to an improved viral transformation/neodifferentiation assay for determining predisposition to cancer. The invention is based on the association between retroviral...
4731323 Methods of measurement and detection employing photosensitive compositions and products  
The present invention relates to methods for measurement and detection which employ a photosensitive indicator which may be prepared from a composition capable of offering a visual, calibrated...
4728608 Bacterial screening system with enhanced shelf life  
A tetrazolium-based system for testing for the presence of organisms or cells in a specimen includes in one embodiment a mixture of a substrate and an indicator system, wherein the overall system...
4728604 Process and reagent for the determination of transaminase  
For the determination of the transaminasae by reaction of a corresponding amino acid with α-ketoglutaric acid to form glutamate and the α-keto acid corresponding to the amino acid used, and...
4724204 Diagnostic device for the detection of increased dehydrogenase or oxidase and the use thereof  
A diagnostic device for the detection of an increased concentration of dehydrogenases and/or oxidases in the fluids of humans, animals or plants, which consists of a carrier which bonds a redox...
4717652 Composition for detection of peritoneal inflammation or infection  
Peritoneal inflammation or infection can be detected in a patient by assaying a peritoneal lavage sample from the patient for lysosomal enzymes. This is done by combining the lavage sample with a...
4707444 Method for predicting the acceptability of coarsely ground beef  
A method for predicting the future acceptability of coarsely ground beef after regrinding and aerobic storage under specified conditions of time and temperature by measurement of the concentration...
4705749 Process and reagent for the determination of glycerol with the use of glycerol kinase  
The present invention provides a process for the determination of glycerol in free or bound form by reaction with ATP in the presence of glycerol kinase (GK) and optionally of a hydrolase with the...
4701420 Analytical compositions, elements and methods utilizing reduction of ferric ion chelates to form detectable dyes  
Ferric ion chelates are useful in analytical compositions, elements and methods for the determination of reductants, or other analytes which can produce a reductant. The ferric ion chelate is...
4693971 Highly sensitive enzyme assay method  
A highly sensitive quantitative assay method for any one component which is L-glycero-3-phosphate (G3P), dihydroxyacetone-3-phosphate (DHAP), nicotinamide adenine dinucleotide (NAD) or reduced...
4686181 Specific binding assay employing anti-G6PDH as label  
A specific binding assay method and reagent system based on the use of an inhibitory anti-enzyme, e.g., antibody or fragment thereof, as the label component. Such method and reagent system have...
4683198 Novel maltose dehydrogenase, process for its production, and analytical method using the same  
An enzyme which acts on a reducing terminal of a monosaccharide or oligosaccharide without requiring NAD or NADP and which catalyzes the reaction ##STR1## wherein R is a saccharide chain residue...
4672028 Compositions and method for simultaneous multiple array of analytes using radioisotope chelate labels  
Compounds useful in a simultaneous multiple assay for analytes such as steroids, proteins, peptides, carbohydrates or drugs. The compound or compounds are prepared by labelling an individual...
4668617 Apparatus and method for optically analyzing a plurality of analysis items in a sample in a container  
An apparatus and method for analyzing at least two analytical items in a sample solution in a single container, wherein a series of transparent containers supported on a rotatable disc pass over a...
4666833 Process for the production of a diagnostic device for the detection of increased dehydrogenase  
A process for the production of a diagnostic device which is envisaged, in particular, for the detection of a pathologically increased concentration of dehydrogenases in fluids of humans, animals...
4657856 Glutathione peroxidase, process for production thereof, method and composition for the quantitative determination of lipid peroxide  
Glutathione peroxidase is produced by fermentation of a microorganism of the genus Mucor. This peroxidase may be used for the determination of lipid peroxide.
4657854 Assay systems based on magnesium-responsive enzymes  
There is provided an assay method for determining the concentration of magnesium ions in biological fluids. The method comprises the introduction of a sample of biological fluid to a...
4654301 Process for detecting LDHk isozyme activity in human serum for use as a diagnostic aid and for monitoring response to cancer therapy  
An improved assay procedure for quantitatively detecting LDHk isozyme in human serum is provided which utilizes previously known electrophoretic gel separation procedures combined with an improved...
4652524 Soluble stabilized enzymes  
A method is disclosed for preparing a soluble stable enzyme. The method comprises the steps of reacting in a liquid media an enzyme with a polymer having pendant groups capable of covalently...
4636465 Method and composition for determination of glycerol  
A method for determination of glycerol by using a reagent system comprising glycerol dehydrogenase and a pyridine nucleotide coenzyme, characterized in that an enzyme selected from the group...