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)
04/1995
04/04/1995US5403746 Aqueous first phase comprising pH sensitive indicator in buffer solution dispersed in hydrophobic second phase permeable to analyte and impermeable to ionized hydrogen
04/04/1995US5403744 Colorimetric analysis using metachromatic dye, pH indicator dye, polyelectrolytes with anionic sites to bind with dyes; for testing urine, blood
03/1995
03/30/1995WO1995008768A1 Method and arrangement for oil well test system
03/30/1995WO1995008767A1 Improved method and capacitance probe arrangement
03/30/1995DE4332512A1 Sensor material for detecting ammonia
03/30/1995CA2170596A1 Improved method and capacitance probe arrangement
03/30/1995CA2170595A1 Method and arrangement for oil well test system
03/29/1995CN1100810A Quick test reagent for iodine content in roseo- iodine salt
03/29/1995CN1100809A Salinity test paper and method for mfg. same
03/28/1995US5401667 Immunochromatographic assay system and method
03/28/1995US5401664 Analytical method for determining concentration of decomposition products in solvent used for solvent extraction
03/28/1995US5401662 Method and reagent for the determination of water
03/28/1995US5401468 Dual flow path carbon particulate monitor
03/28/1995CA1334926C Composition, apparatus and method for sensing ionic components
03/24/1995CA2125832A1 Reagent composition and method for determining lithium
03/22/1995EP0643828A1 Method for monitoring and controlling metalworking fluid
03/22/1995EP0313655B1 Oxygen concentration probe
03/21/1995US5399609 Moisture indicating molding resins
03/21/1995US5399498 Reduction of background interferences in the molybdate-dye protein assay
03/16/1995WO1995007460A1 Method of detecting naphthylamines in mineral oils
03/16/1995CA2170742A1 Method of detecting naphthylamines in mineral oils
03/15/1995EP0643303A1 Usage of N-methylformamide as solvent for the Karl Fischer titration
03/14/1995US5397711 Determination of an analyte in a sample liquid
03/14/1995US5397536 Silane gas detecting tape
03/09/1995WO1995006871A2 Method for activation of polyanionic fluorescent dyes in low dielectric media with quaternary onium compounds
03/08/1995EP0642009A2 Method and apparatus for testing refrigerant
03/08/1995EP0641438A1 Fluorophore-assisted therapeutic drug monitoring
03/08/1995CA2130970A1 Video test strip reader and method for evaluating test strips
03/07/1995US5395586 With polymeric seal to prevent contamination
03/02/1995WO1995006134A1 Bacillus circulans based biological indicator for gaseous sterilants
03/01/1995EP0640393A1 System for storing test elements
03/01/1995EP0640392A2 Analyte detection device
02/1995
02/28/1995US5393556 Applying an aqueous-alcohol solution of iodine and phenolphthalein; observing color change
02/28/1995US5393514 Rhodamine and sulforhodamine type dyes useful for measuring pH in acidic environments such as carbon dioxide production by microorganism and certain acidic cells and tissues
02/28/1995US5393493 Measurement of optically detectable changes; colorimetric
02/23/1995WO1995005602A1 Method and apparatus for carbohydrate analysis
02/23/1995WO1995005598A1 Process and apparatus for testing for substances in liquids
02/23/1995DE4327600A1 Method for determining urine in reusable bottles and containers
02/23/1995CA2169303A1 Method and apparatus for carbohydrate analysis
02/22/1995EP0639772A2 Preparation of diagnostic test strips containing tetrazolium salt indicators
02/22/1995EP0639771A1 Device for monitoring sterilisation process utilizing 100% ethylene oxide
02/22/1995CN2189974Y Fully closed automatic buret
02/21/1995US5392325 Method and apparatus for local protection of piping systems from stress corrosion cracking
02/21/1995CA2130372A1 Device for monitoring sterilization process utilizing 100% ethylene oxide
02/15/1995EP0638805A2 Analyte detection device and process
02/15/1995EP0638166A1 Carbon particulate monitor
02/15/1995EP0500644B1 Gas sensors and compounds suitable therefor
02/14/1995US5389550 Organic substance analyzing method and apparatus using portable construction
02/14/1995US5389546 Method for determining and monitoring constituent concentration of an aqueous metalworking fluid
02/14/1995US5389545 Buffered sulfur dioxide, and water are present before adding iodine; iodine and pyridine free single component using karl Fischer reaction; triiodide ions as oxidizers, amine buffer, sulfur dioxide as reducing agent and a solvent
02/13/1995CA2129463A1 Formaldehyde detecting paper
02/08/1995EP0637749A2 System for analysing liquid samples
02/07/1995US5387659 Flash gas sampling for polymerization reactions
02/07/1995US5387525 Method for activation of polyanionic fluorescent dyes in low dielectric media with quaternary onium compounds
02/02/1995WO1995003545A1 Iodine-free karl fischer reagents
02/02/1995WO1995003340A1 Process for producing dye-containing polyvinyl alcohol foils and their use
01/1995
01/26/1995DE4324679A1 Testing device for gases, in particular for respiratory air
01/25/1995EP0635712A2 Method of pretreating diagnostic test elements
01/25/1995EP0635130A1 Portable thermal analysis device
01/25/1995EP0415974B1 Colorimetric assay of 2-bromo-2-nitro-1,3-propanediol or derivatives thereof
01/25/1995CN2188212Y Fast lead testing bar
01/25/1995CN1097871A Test strip analysis system
01/24/1995US5384411 Immobilization of PH-sensitive dyes to solid supports
01/18/1995EP0634657A2 Chemical analysis film chip
01/18/1995EP0634650A2 Method and device for determining continuously the concentration of hydrogen peroxide or oxidants therefor
01/18/1995EP0634646A1 Method of and apparatus for analyzing nitrogen compounds and phosphorus compounds contained in water
01/18/1995EP0634215A1 Device for simultaneous determination of analytes
01/18/1995EP0634013A1 A nicotine and/or nicotine metabolite detection system.
01/18/1995EP0624251A4 Sample dispersing apparatus and method for use with pyrolysis furnace.
01/17/1995US5382529 Forming a color with a phenol or aniline compound, quantitative analysis
01/11/1995EP0632892A1 Fast response test panel
01/10/1995US5380880 Xanthene dyes
01/10/1995US5380650 Enhanced luminescent assay
01/05/1995WO1995000844A1 Novel clinical marker and therapeutic agent in kidney stone disease and methods of use
01/05/1995WO1995000842A1 Electrochemical sensor
01/05/1995CA2165827A1 Electrochemical sensor
01/03/1995US5378878 Heat resistant and light weight container for materials to be heated, and process for manufacture thereof
01/03/1995US5378638 Solid state immunoassay, reagent dots applied by ink jet printing
01/03/1995US5378632 Method of testing oils
01/03/1995US5378628 Glucose oxidase
01/03/1995US5378432 Optical fiber pH microsensor and method of manufacture
01/03/1995US5378430 Steam sterilization process monitor
01/03/1995US5377496 Refrigeration system with installed acid contamination indicator
01/03/1995CA1333768C Method for measuring the content of halogenated organic compounds in soil samples
12/1994
12/27/1994US5376553 Analyzing biological fluid samples for presence of dicitrate cyclic diester which indicates no pathological calcification or predisposition towards it
12/27/1994US5376336 Optical indicator in sensing layer for obtaining a measured value of quantity dependent on mean concentration of matter
12/27/1994US5376335 Sensitive real time analysis of intermediates and products of vapor phase reaction catalyzed by particulate catalyst, conducted under high vacuum
12/27/1994US5376277 Multidimensional chromatographic system
12/27/1994US5376243 Adding reducing agent to reduce iodine to iodide, measuring potential difference between iodide ion selective electrode and reference electrode, adding two known iodide solutions, measuring, calculating concentration
12/22/1994WO1994029400A1 Method of producing microchannel/microcavity structures
12/21/1994CN1096583A Masking of interfering ions
12/21/1994CN1096582A Normal temp. extraction method for testing digested sludge dehydrogenase activity
12/20/1994US5374397 Device for measurement of no contents
12/20/1994US5373725 O-FID analytical equipment and method
12/14/1994EP0628814A1 Indicator test system for monitoring air removal and/or sterilisation of full loads in steam sterilisers
12/14/1994EP0628805A1 Luminescent optical indicator for measuring the activity of alkali metal ions in a sample solution
12/14/1994CN2185437Y Automatic tester for chemical oxygen demand of sewage
12/13/1994US5372948 Assay and reaction vessel with a compartmentalized solubilization chamber
12/13/1994US5372947 Determining amount of aldehyde released by conversion with respect to a sample from which existing aldehydes have been separated
12/08/1994WO1994028411A1 Photochemical determination of organic compounds