Patents
Sitemap › G01 - Measuring; Testing › G01N - Investigating or analysing materials by determining their chemical or physical properties › G01N 30 - Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography
Patents for G01N 30 - Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography (41,194)
12/1998
12/08/1998US5846838 Opposable-element assay device employing conductive barrier
12/08/1998US5846493 System for analyzing a substance from a solution following filtering of the substance from the solution
12/08/1998US5846411 Single-phase fluid distributor-mixer-extractor for beds of granular solids
12/08/1998US5846293 Method for admitting and receiving samples in a gas chromatographic column
12/08/1998US5846292 Chromatograph with column extraction
12/03/1998WO1998054847A1 High-performance digital signal averager
12/03/1998WO1998054568A1 Improved separation columns and methods for manufacturing the improved separation columns
12/03/1998DE19722952A1 Use of polymers comprising units of fluorine atom(s) on carbon atom
12/03/1998CA2289488A1 High-performance digital signal averager
12/02/1998EP0881482A2 High duty cycle assembly for detecting molecules
12/02/1998EP0881480A2 Baggage sampling assembly
12/02/1998EP0881479A2 Hand held sampling probe
12/02/1998EP0880544A1 Surface modified affinity separation membrane
12/02/1998EP0777887A4 Bimodal liquid chromatography pump employing artificial intelligence logic feedback control
12/02/1998EP0760805A4 Method and apparatus for capacitive deionization and electrochemical purification and regeneration of electrodes
12/02/1998EP0522150B1 Chromatographic technique
12/02/1998CN2299318Y Counterflow chromatograph
12/01/1998US5844237 Electrospray and atmospheric pressure chemical ionization sources
12/01/1998US5843788 Chromatographic method for determination of glycated proteinaceous species in blood
12/01/1998US5843786 Analysis of carbohydrates in biological fluids by high performance liquid chromatography
12/01/1998US5843311 Accelerated solvent extraction method
11/1998
11/30/1998CA2239140A1 The use of polymers for inhibiting the denaturation of adsorbed proteins
11/26/1998WO1998053310A1 Pyrolysis tube for gas chromatography, pyrolysis device, gas chromatographic method and gas chromatograph
11/25/1998EP0880027A2 Analyzing system
11/25/1998EP0879416A1 Carrier material loadable by a through flow for solid phase assays
11/25/1998EP0879247A1 Glial cell line-derived neurotrophic factor receptors
11/25/1998EP0815442B1 Fixed-volumed injector with backflush capability
11/25/1998EP0636186B1 Probe composition and method
11/25/1998EP0605714B1 Electrochemical pretreatment system for liquid sample analysis
11/25/1998CN2298518Y Chain counter current chromatograph rotor
11/24/1998US5841022 Gas analyzer and gas analysis method
11/21/1998CA2237863A1 Analyzing system
11/19/1998WO1998052034A1 Thermal expansion pump for pulse-free liquid flow
11/19/1998WO1998051391A1 Single column closed-loop recycling with periodic intra-profile injection
11/19/1998DE19726000A1 Miniaturised gas chromatography system
11/18/1998EP0878712A2 Standardization of chromatographic systems
11/18/1998EP0878711A1 Chemically sensitive sensor comprising arylene alkenylene oligomers
11/18/1998EP0878021A1 Apparatus for forming liquid droplets having a mechanically fixed inner microtube
11/18/1998EP0877972A1 Covered microchannels and the microfabrication thereof
11/18/1998EP0877936A1 Discontinuous countercurrent chromatographic process and apparatus
11/18/1998EP0877935A1 Real-time gas-chromatography mass-spectrometry trace vapor detection
11/18/1998CN1040798C Absorbance analyzer and data processing method for chromatograph
11/17/1998US5837883 Gas chromatograph/mass spectrometer
11/17/1998US5837135 Chromatography and related apparatus system
11/17/1998US5837115 Microlithographic array for macromolecule and cell fractionation
11/17/1998US5837038 Closing element intended for closing off an end of a capillary gas chromatography column
11/14/1998CA2240325A1 Methods for screening compound libraries
11/12/1998WO1998050778A1 Detachable-element assay device
11/12/1998WO1998050129A1 Chromatograph with column extraction
11/12/1998DE19718643A1 Pre-separation column used in high pressure liquid chromatography, suitable for retro-fitting to existing equipment
11/11/1998EP0876607A1 High speed gas chromatography
11/11/1998EP0876606A1 Particle enhanced spectroscopic detection
11/11/1998EP0630412B1 Methods to profile and treat abnormal cells
11/11/1998CN1040690C Solid phase extraction column for chromatograph
11/10/1998US5835231 Broad band intra-cavity total reflection chemical sensor
11/10/1998US5834633 Device for concentrating trace components in a liquid
11/10/1998US5833927 Pipette tip with a membrane extending across the tip
11/10/1998US5833861 Perfusive chromatography
11/10/1998US5833844 Thermally-driven ion-exchange process for lithium recovery
11/05/1998WO1998049554A1 Method and apparatus for concentrating solution
11/05/1998WO1998048914A1 Improved liquid chromatographic media for polynucleotide separation
11/05/1998WO1998048913A1 Polynucleotide separations on nonporous polymer beads
11/05/1998CA2285307A1 Improved liquid chromatographic media for polynucleotide separation
11/04/1998EP0875759A2 Methods for screening compound libraries
11/04/1998EP0875578A2 Penicllin binding protein 2A from staphylococcus aureus strain 27R and derivatives for use in purification therefor and assay for compounds effective against methicillin resistant organisms
11/04/1998EP0875271A2 Process and apparatus for the isolation and purification of nucleic acids
11/04/1998EP0783363A4 Off-column detector for ion separation techniques
11/04/1998EP0616639B1 Device and process for isolating and purifying nucleic acids
11/03/1998US5831143 Method for detecting hydrogen in waste compounds
11/03/1998US5831037 Method for clinical examination based on the structures of immunoglobin G-linked oligosaccharides
11/03/1998US5830353 Oven safety feature
11/03/1998US5830262 Gas chromatograph oven with improved regulation of the air temperature
10/1998
10/29/1998DE19717837A1 Determining melanin affinity of test substances, e.g. drugs
10/28/1998EP0874241A1 Assay device
10/28/1998EP0873507A1 Analytical apparatus
10/28/1998EP0873189A1 Adsorption medium and method of preparing same
10/28/1998EP0873168A1 Precolumn separator for gas chromatograph
10/28/1998CN1197370A Method for monitoring growth and detection of environmental stress in plants
10/27/1998US5827946 Method for sample identification using a locked retention time database
10/27/1998US5827945 Gas flow distribution system
10/27/1998US5827481 Portable
10/27/1998US5827426 Liquid chromatograph and liquid chromatography
10/27/1998US5827353 Precolumn separator for gas chromatograph
10/22/1998WO1998047006A1 Analysis of molecules
10/22/1998WO1998046992A1 Method for detecting s-nitroso compound
10/22/1998WO1998046991A1 Solid-liquid countercurrent extraction continuously separating apparatus
10/22/1998WO1998046990A1 Improved cooling device for cooling heatable gas chromatography analyte sample injector
10/22/1998WO1998046989A1 Detection of teratogen exposure
10/22/1998WO1998046988A1 Method for detecting hydrogen in waste compounds
10/22/1998WO1998046644A1 Novel protein and process for producing the same
10/22/1998WO1998046623A2 Purification of peptides and oligonucleotides by sample displacement chromatography process and apparatus
10/22/1998WO1998046351A1 A tethered polymer macromolecule-excluding surface, its mode of synthesis and use
10/22/1998WO1998046350A1 Sorption agent containing nucleotide, for affinity chromatography
10/22/1998CA2781623A1 Novel protein binding to osteoclastogenesis inhibitory factor and process for producing the same
10/22/1998CA2289688A1 Analysis of molecules
10/22/1998CA2286576A1 Detection of teratogen exposure
10/22/1998CA2255857A1 Method for detecting s-nitroso compound
10/21/1998EP0872732A1 Method and apparatus to compensate for gas chromatograph column permeability
10/21/1998EP0871976A1 Method for preparing blend products
10/21/1998EP0871936A1 Method for predicting chemical or physical properties of complex mixtures
1 ... 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 ... 412