Patents
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)
06/1999
06/09/1999CN1219240A Purification of tissue plasminogen activator
06/09/1999CN1218906A Method for analysing water solbule contaminant in the air of clean room and instrument thereof
06/09/1999CN1218905A Efficient liquid phase chromatographic analysis of organic fire-retardant
06/08/1999US5911000 Detecting abnormal reactions in a red blood cell agglutination
06/08/1999US5910462 Heating zironia-silica to a liquid melt, quenching to effect spinodal decomposition; annealing to transform zirconia to monoclinic form, leaching out silica phase; three dimensional porous interpenetrating network; alkali resistant supports
06/08/1999US5910450 Process and device for enriching gas, vapor and/or aerosol emissions released from an object
06/03/1999WO1999027361A1 Electrochemical analysis system
06/02/1999EP0918989A1 Method of detecting gynecological carcinomas
06/02/1999EP0918988A1 Apparatus and method for gas chromatography
06/02/1999EP0918987A1 Process and installation for carrying out column tests under hydrostatic pressure
06/02/1999DE19752909A1 Selective and sensitive gas analysis
06/02/1999CN1218478A Cyclic adhesion inhibitors
06/02/1999CN1043534C Improved cellulose chromatography support
06/01/1999US5908995 System for measuring the solubility of solid compounds in supercritical fluids
06/01/1999US5908556 Automatic ionic cleanliness tester
06/01/1999US5908552 Column for capillary chromatographic separations
06/01/1999CA2112910C Fluid sampling system
05/1999
05/27/1999WO1999025452A1 High-throughput method and apparatus for identifying, quantitating and determining the purity of chemical compounds in mixtures
05/27/1999WO1999025451A1 Liquid chromatography column
05/27/1999WO1999025450A1 Improvement in chemical analyses
05/27/1999CA2309936A1 Liquid chromatography column
05/26/1999EP0917533A2 Oligonucleotide linker and techniques involving immobilized and linked oligonucleotides
05/26/1999CN1217791A Graphitic nanotubes in luminescence analysis
05/25/1999US5906723 Electrochemical detector integrated on microfabricated capillary electrophoresis chips
05/25/1999US5906223 Chromatography valve assembly
05/25/1999CA2059398C Solid phase extraction medium
05/20/1999WO1999024829A1 Apparatus and method for gas phase chromatography
05/20/1999WO1999024828A1 Serpentine electrophoresis channel with self-correcting bends
05/20/1999WO1999024138A1 Device and methods for purifying biological molecules using low volumes of chromatographic and adsorptive media
05/20/1999WO1999024137A1 Apparatus and method for making a sealable connection to a chromatography cartridge
05/20/1999CA2309817A1 Apparatus and method for making a sealable connection to a chromatography cartridge
05/19/1999EP0916945A1 Circular dichroism detector for HPLC
05/19/1999EP0916405A2 Improved bevel closure assay device housing
05/19/1999EP0916352A2 Use of polymers to inhibit the denaturation of absorbed proteins
05/19/1999EP0915832A1 Boronic compound complexing reagents and highly stable complexes
05/19/1999EP0915734A1 An enzymatic method for removing contaminants from ion exchange and fractionation resin
05/19/1999EP0668745B1 Assaying device
05/19/1999EP0662013B1 Apparatus for supercritical fluid extraction or supercritical fluid chromatography
05/19/1999CN1217060A Immunochromatographic assay device
05/19/1999CN1043441C Capillary electrophoresis device and ion analysis method
05/18/1999US5905195 Method for analyzing total reactive sulfur
05/18/1999US5905192 Method for identification of chromatographic peaks
05/18/1999US5904749 Gas chromatographic method
05/18/1999CA2151979C Electron capture detector with guard electrode
05/14/1999WO1999022868A1 Pressure-enhanced extraction and purification
05/14/1999WO1999022839A1 Method for high resolution liquid chromatographic separation of polynucleotides
05/14/1999CA2308314A1 Method for high resolution liquid chromatographic separation of polynucleotides
05/14/1999CA2307876A1 Pressure-enhanced extraction and purification
05/12/1999EP0915336A2 Opposable-element chromatographic assay device for detection of analytes
05/12/1999EP0915334A1 Method and apparatus for concentrating solution
05/12/1999EP0915329A2 Odor collection apparatus
05/12/1999EP0915171A2 Sample processing method using ion exchange resin
05/12/1999EP0914615A1 Process for establishing direct diagnostic evidence of pathogenic, genetically-conditioned point mutations
05/12/1999EP0898490A4 Method for determining saturation of carbon filters in a gas treatment process
05/12/1999EP0442977B1 Chromatography method
05/11/1999US5903348 Capillary analysis system
05/11/1999US5902485 Access valve devices, their use in separation apparatus and corresponding methods
05/06/1999WO1999022244A2 Method for determination of drugs of abuse in biological samples
05/06/1999WO1999022234A1 Chromatographic column and valve
05/06/1999WO1999022228A1 A multichannel microscale system for high throughput preparative separation with comprehensive collection and analysis
05/06/1999EP0913689A1 Method for detecting s-nitroso compound
05/06/1999EP0912605A1 Imprint polypeptides covalently cross-linked and having a fixed and stabilised arrangement, process for the preparation and use thereof
05/06/1999EP0912242A1 Chiral non-particulate sorbents
05/06/1999EP0815424A4 Sample collection device
05/06/1999EP0671002B1 Ion chromatography using frequent regeneration of batch-type suppressor
05/05/1999CN2317479Y High capacity ion chromatographic inhibiting column
05/04/1999US5900934 Capillary chromatography detector apparatus
05/04/1999US5900557 For vials
05/04/1999US5900152 Apparatus to reduce inhomogeneities in optical flow cells
05/04/1999US5900144 Separating agent comprising bonded conalbumin
05/04/1999CA2026843C Self-performing immunochromatographic device
04/1999
04/29/1999DE19755244C1 Flange connection mechanism especially for chromatography column
04/28/1999EP0911342A1 Novel protein and process for producing the same
04/28/1999EP0910788A1 Integrated collection and vaporization particle chemistry monitoring
04/28/1999EP0910474A1 Absorption-enhanced differential extraction device
04/28/1999EP0775150B1 Endotoxin reduction or removal process
04/28/1999EP0739533B1 Ion spray with intersecting flow
04/27/1999US5898175 Mass spectrometer and mass spectrometry method for analyzing compounds contained in a solution
04/27/1999US5897781 Active pump phasing to enhance chromatographic reproducibility
04/22/1999WO1999019899A1 Curved introduction for mass spectrometry
04/22/1999DE19840763A1 Turbine generator component diagnostics process
04/21/1999EP0808455B1 Application of countercurrent chromatography to the deconvolution of chemical libraries
04/21/1999CN2315566Y New liquid phase chromatographic column
04/21/1999CN1214771A Carrier material loadable by through flow for solid phase assays
04/15/1999WO1998059360A9 Retentate chromatography and protein chip arrays with applications in biology and medicine
04/15/1999DE19842667A1 Capture of basic or acidic target material in gas during liquid production
04/14/1999EP0908925A2 Determining halogen toxicity level of halogenated compounds
04/14/1999EP0908174A2 Compositions for fragrancing at least one perfumable material and fragrance diffusion evaluation apparatus
04/14/1999EP0907887A1 Engineering affinity ligands for macromolecules
04/14/1999EP0885055A4 Fractionation using dielectrophoresis and field flow fractionation
04/13/1999US5894063 Surface-enhanced neat desorption for disorption and detection of analytes
04/13/1999US5893971 Apparatus that maintains compression in a tube
04/08/1999WO1999017104A1 Apparatus and method for radioactivity measurement in liquid chromatography
04/08/1999WO1999017100A1 Multiple analyte diffusion-based chemical sensor
04/08/1999WO1999016545A1 Chemically-modified porous materials with an electroneutral hydrophilic outer surface
04/08/1999WO1999016526A1 Method for separating complex mixtures by means of solid phase extraction for use in active substance search and analysis
04/08/1999WO1999016319A1 A fagopyrum cymosum (trev.) meisn composition, method to prepare and analyze the same and uses thereof
04/08/1999CA2304763A1 A fagopyrum cymosum (trev.) meisn composition, method to prepare and analyze the same and uses thereof
04/07/1999EP0906962A1 Interseparation of platinum group metals
04/07/1999EP0906638A1 Automated calibrant system for use in a liquid separation/mass spectrometry apparatus