Patents
Patents for G01N 31 - Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroups; Apparatus specially adapted for such methods (18,554)
05/1998
05/19/1998US5753452 Used for colorimetric determination of glucose concentration in whole blood
05/19/1998US5753093 Using a linker lipid for attaching a membrane including a plurality of ionophores to an electrode; providing a space between the membrane and the electrode
05/14/1998WO1998020344A1 Compositions and methods for detection of an amine compound
05/14/1998WO1998020337A1 Methods and devices for detecting spoilage in food products
05/14/1998WO1998020328A1 Detection of alkali-silica reaction swelling in concrete by staining
05/14/1998WO1998019787A1 Novel polymerized crystalline colloidal array sensors
05/14/1998DE19746446A1 Diluting samples for chemiluminescence analysis
05/14/1998DE19703254A1 Determination of ozone concentration in air
05/14/1998DE19646265A1 Apparatus for measuring total bound nitrogen in a sample of water
05/14/1998CA2270346A1 Novel polymerized crystalline colloidal array sensors
05/12/1998US5750999 Air contamination monitor
05/12/1998US5750404 Reagent for the determination of water AMD ene-diols or thiols
05/12/1998US5750073 Electrolytic cell; hydrogen permeable electrode
05/07/1998WO1998019159A1 Synchronized analyte testing system
05/07/1998WO1998018962A1 Methods and devices for mass transport assisted optical assays
05/07/1998DE19719067A1 System rapidly determining and controlling sample solution concentrations, especially for titration
05/07/1998CA2271044A1 Synchronized analyte testing system
05/07/1998CA2270421A1 Methods and devices for mass transport assisted optical assays
05/05/1998US5748492 Measuring heating value using catalytic combustion
05/05/1998US5747656 2-//dihydroxyphenyl/azophenyl/benzothiazole-7-sulfonic acids
05/05/1998US5747349 Fluorescent reporter beads for fluid analysis
05/05/1998US5747342 Methods and apparatus for monitoring and controlling PH phosphate and sodium to phosphate ratio in boiler systems operating with captive alkalinity
04/1998
04/30/1998WO1998018002A1 Measuring heating value using pre-determined volumes in non-catalytic combusiton
04/29/1998EP0837730A1 Distributor device, in particular for a chemical analysis arrangement
04/28/1998US5744365 Colorimetric analysis
04/28/1998US5744307 Method for measuring adenyl group-containing susbstances
04/28/1998CA2136876C Flash gas sampling for polymerization reactions
04/23/1998WO1998016821A1 Device and method for the determination of water
04/23/1998CA2268630A1 Device and method for the determination of water
04/22/1998EP0837327A1 Process and sensor layer for the quantitative determination of at least one chemical component of a gaseous or liquid sample
04/22/1998EP0836706A1 Measuring heating value using catalytic combustion
04/22/1998CN2279610Y Water ion concentration colorimetric on-site testing bottle
04/21/1998US5741711 Flame-based method and apparatus for analyzing a sample
04/21/1998US5741409 Biosensors, ion selective electrodes
04/21/1998CA2128987C Analyte detection device and process
04/16/1998WO1998015810A1 Method for collecting samples of liquid specimens for analytical testing
04/16/1998DE19746733A1 Regulation of inert gas supplied to an annealing furnace
04/15/1998CN1178906A Reagent experiment device of hollow truncated cone
04/14/1998US5739035 Detecting alkali rich gel (yellow stain) and alkali-poor (pink stain) by contacting concrete with sodium cobaetnitkite and rhodamine b, respectively
04/14/1998US5738693 Detection of naphthylamines in mineral oils
04/07/1998CA1339797C Method for detection of thiol compounds in a fluid sample
04/07/1998CA1339795C Reducible indicator compositions containing pyrogallol derivatives and uses thereof
04/02/1998WO1998013684A1 Apparatus for and method of chemical analysis
04/02/1998WO1998013431A2 Steam sterilization indicator compositions
03/1998
03/31/1998US5733789 Water impurity analysis method
03/31/1998US5733786 Mercury determination
03/31/1998US5733506 Gas sensors and compounds suitable therefor
03/31/1998US5733505 Non-regenerating carbon monoxide sensor
03/25/1998EP0831327A1 Redox active compounds and their use
03/25/1998EP0830598A1 Manganese iii method for chemical oxygen demand analysis
03/25/1998EP0830206A1 Test strip holder and method of use
03/25/1998CN1177105A Box for on-side sampling and analysing for monitoring iodine salt in batches for quality assurance
03/24/1998US5731207 Transferring method and device for dry chemical analysis film
03/24/1998CA2216105A1 Redox-active compounds and their use
03/19/1998WO1998010866A1 Cartridge and system for storing and dispensing of reagents
03/18/1998EP0829719A1 Method and device for avaluating a pollution characteristic of a soil sample.
03/18/1998EP0829006A1 Process for producing a sensitive single-layer system for measuring the concentration of analytes and a system produced by said process
03/18/1998CN1176390A Volume-independent diagnostic test carrier and methods in which it is used to determine analyte
03/18/1998CN1176388A Reagent composition, testing piece, and assay kit
03/17/1998US5728350 Chemical or microbiological test kit
03/17/1998US5727498 Retractable visual indicator assembly
03/12/1998WO1998010280A1 Determination of aqueous fluid surfactant concentration
03/12/1998WO1998010267A1 A micro flow system for particle separation and analysis
03/12/1998CA2264389A1 A micro flow system for particle separation and analysis
03/04/1998EP0826777A1 Chemical timer for a visual test strip
03/04/1998EP0826143A1 Method for determining dissolved oxygen in water
03/04/1998CN1174996A Analysis system for testing small volume sample
03/04/1998CN1174995A Instrument for chemical examining liquid sample
03/03/1998US5723340 Optical indicator for determining the activity of an ion in a sample
03/03/1998US5723339 Complexing with ammonium pyrrolidine dithiocarbamate
03/03/1998CA2214292A1 Chemical timer for a visual test strip
02/1998
02/26/1998WO1998008086A1 New kind of thin films for microsystem technology and microstructuring and their use
02/26/1998WO1998008077A1 Optical detector
02/26/1998DE19633808A1 Detecting microbial contamination
02/25/1998EP0825437A1 Halogen or acidic gas detecting agent
02/24/1998US5721143 Surfactant/detergent titration analysis method and apparatus for machine working fluids, surfactant-containing wastewater and the like
02/24/1998US5720924 Rigid storage container including plurality of tubes having foils sealing both ends, forming water vapor-impermeable chambers, with test elements located within said chambers
02/19/1998WO1998007027A1 pH AND AMINE TEST ELEMENTS AND APPLICATIONS TO DIAGNOSIS OF VAGINAL INFECTIONS
02/19/1998WO1998007026A1 Process and facility for examining chemical reactions in miniaturized reactors arranged parallel to each other
02/19/1998WO1998007020A1 Nitric oxide sensor
02/19/1998WO1998007019A1 Capillary microvalve
02/19/1998DE19632779A1 Verfahren und Vorrichtung zum Untersuchen von chemischen Reaktionen in parallel geschalteten, miniaturisierten Reaktoren Method and apparatus for examining chemical reactions in parallel, miniaturized reactors
02/19/1998CA2497724A1 Ph and amine test elements and applications to diagnosis of vaginal infections
02/19/1998CA2263324A1 Capillary microvalve
02/19/1998CA2263293A1 Ph and amine test elements and applications to diagnosis of vaginal infections
02/18/1998EP0824212A1 Gas detection method and apparatus using gas reactive pigment
02/18/1998EP0823877A2 A method of making a laminated substrate and an apparatus for marking the substrate with reagent
02/18/1998CN1173921A Methods for prodn. ef large catalogued chemical libraries
02/18/1998CN1173640A Standard sample of organic element microanalysis and its prepn. method
02/17/1998US5719138 Contacting with a dicitrate cyclic diester
02/17/1998US5719034 Chemical timer for a visual test strip
02/12/1998DE19640500C1 Method of testing and determining alloy class of aluminium alloy
02/11/1998EP0823635A2 Hollow frustum reagent test device
02/11/1998CN1173224A Multilayer analytical element
02/10/1998US5717494 Method of optically measuring liquid in porous material
02/10/1998US5716852 Microfabricated diffusion-based chemical sensor
02/09/1998CA2212475A1 Hollow frustum reagent test device
02/05/1998DE19631347A1 Preparation of liquid buffer solutions with selectable characteristics
02/04/1998EP0822400A2 Device for assay of liquid sample
02/04/1998EP0821714A2 Indicator ink compositions