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DE4403780A1 Non-radioactive assay for bio-molecules, esp. nucleic acids  
Non-radioactive detection of biomolecules comprises forming dioxetanes of formula (I) from olefin precursors of formula CR1R2=CR3R4 (II) in an amplification reaction preceding the detection...
DE4343082A1 Bio-assay based on enzymatic hydrogen peroxide colour reaction  
Determn. of an analyte in a biological fluid comprises reacting the analyte with an H2O2-forming oxidase and detecting the resulting H2O2 by a peroxidase-dependent colour reaction. The reagent...
DE4340827C1 Method and device for determining the effectiveness of a skin protection agent  
Method and device for determining the effectiveness of a skin protection agent in vitro, in which the agent to be examined is applied and conditioned in a defined, adjustable layer thickness on an...
DE4318151A1 Process for the preparation of reaction materials for specific and direct reactions and detections of nitrate and of nitrate compounds based on novel chemical reactions  
The technical problem is the preparation of reaction materials which must meet the following requirements: specific and direct, but interference-free, detection of nitrate or of nitrate compounds....
DE4405488A1 Dry analytic element for the measurement of a multiplicity of analytes  
The invention relates to a dry analytic element which comprises a porous spreading layer, a hydrophilic polymer layer and a water-impermeable support, which are laminated in this sequence. The...
DE4335823A1 Determn of catecholamine in biological sample - by inducing fluorescence then analysing using chromatography, with addn of maleimide to prevent interference  
Determination of analyte(s) (I) selected from catecholamines and/or their metabolites in a biological sample comprises inducing fluorescence in (I), after pretreatment, using a fluorescence...
DE4229477A1 Prepn. of a highly porous membrane - by selective removal of polymers; useful as testing strips in urine analysis  
Prepn. of a highly porous polymer membrane comprises: (i) dispersion of an insol. filler material into a soln. of at least two incompatible polymers which are in phase sepn. so that a homogenous...
DE4309529A1 Quantitative or qualitative analyte determn. by photometric analysis - using reference soln. contg. surfactant to obtain correction factor, and measuring analyte concn. in sample, for enzyme immunoassay  
The determn. comprises (a) introducing the sample and analysis reagents into a measuring vessel by a pipette (suction and supply device); (b) measuring an optical characteristics of the mixt. in...
DE4220046C1 Title is not available  
The invention concerns a method and test reagent for the determination of iodine in urine using starch as indicator. The iodine concentration of a urine sample is first increased by a known amount...
DE4302218A1 Indicator of fat and moisture content in human skin - contains fat and moisture sensitive substance on carrier which changes colour depending on skin fat or moisture content  
The indicator contains the fat and moisture sensitive substance (2) on the carrier (1) which at least partially changes colour on application to human skin. The carrier is coloured other than...
DE4116116A1 Fluorescent light measuring instrument for joint testing - has optical passages generating quasi monochromatic excitation light and contg. collector lenses and detectors, for compact system  
Instrument comprises an optical excitation passage and two fluorescence ones. The excitation passage has a light source and lenses generating a quasi-monochromatic excitation light. The...
DE4205876A1 TESTTRAEGER FOR DETERMINING AN ANALYTE FROM WHOLE BLOOD  
A test carrier for determining an analyte in whole blood comprises a test field containing a reagent system. The test field has a sample feed side on which the blood sample is placed and a...
DE4009132A1 Assay for oxalate in body fluids - based on chemiluminescence induced by mono:peroxy-oxalic acid  
Direct quantitative determn. of oxalates of formula R1OOC-COOR2 (where R1 and R2 are (in)organic gps., e.g. H, metal, NH4, alkyl, aryl, amide(sic), cycloalkyl or heterocyclyl) in body fluids is...
DE4004900A1 Nitrate FROM YEASTS, THEIR PRODUCTION AND USE  
The invention relates to NAD(P)H-dependent nitrate reductase derived from yeasts, a process for producing it and its use in a reagent for nitrate determination. The nitrate reductase is...
DE3645090C2 Title is not available  
Porous solid phase is prepd. by treating a porous, fibrous material with a dispersion or suspension of particles to which at least one binding partner (I), having biological affinity, is bonded,...
DE4031792A1 Indicator element contg. solid components - is for irreversible indication of defrosting of frozen goods, and contains elements undergoing permanent colour change on contact with water  
The indicator element becomes permanently coloured to the naked eye when acted upon by liquid, esp. water. The element consists of absorbent material and of at least one signalling material which...
DE3929751A1 Test strip foil photometric analysis - replaces separate filter by correspondingly coloured carrier medium  
A test strip for use in clinical chemistry, in soil and water analysis, for chemical biological and physical investigations has an integrated filter for the photometric, reflection, photomeric,...
DE3921392A1 Separator aligning similar, flat test strips - has cylindrical chamber with strip inlet, rotatable strip driver and strip outlet for continuous automatic working  
An arrangement for separating and aligning similar flat test strips (12) contains a horizontal cylindrical chamber (14) at least as long as a test strip with a strip insertion aperture (16) in its...
DE3919317A1 Derivatization for Peptides and Proteins WHEN HPLC ECD ANALYSIS  
The invention concerns the use of hydrolysis- and air-stable metal-aromatic complexes, metal-carbonyl-aromatic complexes or metalcarbonyl-carbene complexes with substituents which are reactive...
DE4017996A1 Diagnostic reagent for detecting urinary calculi - esp. those contg. 2,8-di:hydroxy-adenine, contg. mercury ions in strongly acidic aq. soln.  
Diagnostic reagent (A) for detecting urinary tract stones, esp. kidney stones contg. 2,8-dihydroxy-adenine (I), contains mercuric and/or mercurous ions in a strongly acidic aq. medium. Pref. (A)...
DE3907683A1 INDICATOR, METHOD FOR THE PRODUCTION AND USE  
The invention concerns an indicator for determining the variation over time of an event by reaction of a first chemical compound with a second chemical compound, which results in a visible colour...
DE3913868C1 Blood parameter measuring sticky foil - has adhesive on underside and indicator zone on top side  
The support foil has a top side reaction or indicator zone and an adhesive on its underside, pref. of the self-adhesive type or a double-side adhesive film which holds the support foil. The foil...
DE3928568A1 Ion assay device contg. ionophore with several crown ether residues - which forms ion complex which reacts with colour forming indicator, esp. for clinical measurement of alkali metal  
Analytical device for measuring ions in a hydrophilic, layered carrier matrix in which are dispersed fine beads of hydrophobic carrier contg (1) an ionophor (I) with 2 or more crown ether residues...
DE3924451A1 Multilayered element for clinical analysis of specific ion concn. - contg., in hydrophobic carrier particles, ionophor, indicator and anionic surfactant  
Multilayered unalytical element comprises a carrier layer on which are deposited, in order (1) a reagent layer contg. a hydrophilic binder (I) or (2) a porous spreading layer. The reagent layer...
DE3816596A1 Indicator element of solid constituents  
Hitherto, it has not been possible to make the state "thawed" simply and clearly visible in individual packages of deep frozen goods, in particular foods. According to the invention, this problem...
DE3912226A1 Reagent for the analysis of triglycerides and analytical method for triglycerides  
A reagent for the analysis of triglycerides which are present, for example, in blood serum contains lipases in combination with monoglyceride lipases which are suitable for acting with substrate...
DE3821077A1 PROCEDURE FOR DETERMINING THE OXYGEN CONTENT IN BIOLOGICAL FLUESSIGSUBSTRATEN AND DEVICE FOR IMPLEMENTING SAID METHOD  
A process and apparatus for determining the oxygen content in a substance, more particularly a biological fluid such as blood. The process employs an oxidoreductase. These enzymes use oxygen as a...
DE3903126A1 Reagent composition and test strips for detecting constituents in body fluids  
Composition for detecting a constituent in body fluids which has one or more reagents needed to detect a specific constituent and, as carrier for the reagent, a sulphonated polyester resin. Also...
DE3729473A1 Method of producing a test receptacle  
A method of producing a test receptacle for the reception of a substance to be tested, e.g. stool. Stool tests require samples from three days. This has hitherto been done by providing three test...
DE3738982A1 Method for the determination of proteins, protein structures and nucleic acids from body fluids  
A method for the determination of proteins, protein structures and nucleic acids which derive from samples of body fluids is described. The method is characterised in that the sample is taken up...
DE3714225A1 Method for the serological detection of antigens or antibodies  
Method for the serological detection of antigens with specific binding of the antigen to be detected to the corresponding antibody and with another binding of the antibody to an...
DE3735824C1 Method for the quantitative determination of coli bacteria using a rapid test  
The present invention has the aim of producing a fast but, nevertheless, valid quantitative determination of coli bacteria since the known methods are rather time-consuming, taking about 3 days,...
DE3712440A1 Assay system and method for determining a plurality of analytical parameters  
The invention relates to an assay system and a method for determining a plurality of analytical parameters in a basic system common to all the determinations, wherein a reaction which changes the...
DE3703513A1 Water-soluble perylene fluorescent dyes  
The preparation and use of water-soluble perylene fluorescent dyes are described. The water-solubility of the dyes is achieved by the introduction of sulpho groups into the terminal radicals of...
DE3700180A1 Chewing composition and method of use  
The invention relates to a chewing composition which is in the form of an open-cell elastic foam and also serves as sucking composition, preferably in cube form. It can be used to take a sample of...
DE3641580A1 Suction napkin for detecting hair keratin-reducing compounds and method for the permanent reshaping of hair  
The invention relates to a suction napkin which is provided with an indicator substance suitable for detecting hair keratin-reducing compounds, and to a method for the permanent reshaping of hair...
DE3639606A1 Process for the preparation of a dye-containing polymer  
In a process for the preparation of a dye-containing polymer for spectroscopic analysis, monomer units are polymerized in the presence of the dye to give a block polymer formed in homogeneous...
DE3636060A1 Solid phase contg. particles carrying specific binding component  
Porous solid phase is prepd. by treating a porous, fibrous material with a dispersion or suspension of particles to which at least one binding partner (I), having biological affinity, is bonded,...
DE3701192A1 Method and device for starting the blood glucose determination program in a blood glucose determining apparatus operating with commercially available blood glucose test strips  
Automation of the start of the program in blood glucose determining apparatuses when a preset minimum amount of blood is reached leads to elimination of the sources of error which are possible...
DE3636096A1 Diagnostic product  
A diagnostic product for the detection and for the determination of the brushite content of kidney stones, which contains alizarin yellow R (G) and, where appropriate, cresol red indicator in an...
DE3632133A1 Chewing gum for diagnostic purposes  
A chewable composition, in particular a chewing gum, is distinguished by containing at least one material which is suitable for diagnostic purposes and which reacts with a characteristic change in...
DE3631016A1 Method and agents for detecting antibodies against T-lymphotropic viruses  
A method and agents for detecting antibodies against T-lymphotropic viruses by reacting the sample to be investigated with a human cell line which is infected with the viruses, and subsequently...
DE3722864A1 Coating for tubing systems  
The invention relates to a coating for tubing systems with a bacteria indicator impregnated with substances with antibacterial activity. It is preferably used in bags for collecting urine and...
DE3642939A1 METHOD FOR DNA-MARKER  
A process for labelling DNA fragments (oligonucleotides) using fluorescent dyes. The labelling is carried out by converting the DNA fragment into its 5'-[HS-(Y)z]-derivative, and the latter is...
DE3618989A1 Indicator for diagnostic purposes  
An indicator for diagnostic purposes, which includes a carrier substance to be wetted with the liquid to be investigated, consists of an arrangement, which completely envelops the carrier...
DE3715245A1 Process for the production of an analytical element of the dry type  
A process for the production of an analytical element of the dry type for determining alkaline phosphatase is described. In the process, a solution of an amine salt or of an amino alcohol salt of...
DE3707110A1 Analytical element for determining the activity of lactate dehydrogenase  
An analytical element for determining the activity of lactate dehydrogenase has a reagent layer. The reagent layer contains NAD<+>, lactate, a buffer and an enzyme such as pyruvate kinase,...
DE3702210A1 Method of determining the concentration of components, in particular oxygen, contained in a substance  
Conventional methods of determining the concentration of components contained in a substance, in particular the oxygen content of a sample, have a number of disadvantages which are due, for...
DE2928239C2 Title is not available  
A process for assessing the state of surface oxidation of keratin fiber(s), especially human hair, which results following treatment with, inter alia, peroxides and bromates. This process involves...
DE3539772A1 Analytical means containing a redox system and an oxidant, and a method for the manufacture thereof  
An analytical means, consisting at least of an absorbent carrier, an analytical system for an analyte and a detection system, is described, which contains a redox system as the detection system...