| 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) |
|---|
| 07/18/1990 | CA2025771A1 A method for preparing samples for mass analysis by desorption from a frozen solution |
| 07/17/1990 | US4942296 Super-critical fluid mass spectrometer |
| 07/17/1990 | US4942135 Method for preconcentrating a sample for subsequent analysis |
| 07/17/1990 | US4942134 Method and apparatus for scientific analysis under low temperature vacuum conditions |
| 07/17/1990 | US4942018 Packed bed gradient generator for high performance liquid chromatography |
| 07/17/1990 | CA1271811A2 Metal terminal electrode for electrochemical cell |
| 07/12/1990 | WO1990007711A1 Industrial isolation method of biopolymer and apparatus for said method |
| 07/12/1990 | WO1990007376A1 Adsorbent for metal ions, proteins and other inorganic and organic substances |
| 07/11/1990 | EP0377202A2 Method and mixing device for small volumes |
| 07/11/1990 | EP0377016A1 Process for separation and recovery of charged molecules |
| 07/11/1990 | EP0232416B1 Process for identifying compounds which can absorb or release electrons after catalysis by enzymes |
| 07/10/1990 | US4941101 Method for analyzing chromatograms |
| 07/10/1990 | US4940333 Method and apparatus for detecting universally and selectively concentration gradients, and for deflecting a light beam in a controlled fashion |
| 07/10/1990 | US4939943 Sample injector for a liquid chromatograph |
| 07/10/1990 | CA1271468A1 Hydratable dry substance producing an aqueous gel containing dispersed polymer particles, method of its preparation and its application in biology |
| 07/07/1990 | WO1990007528A1 Polymer compositions |
| 07/04/1990 | EP0376883A1 Enantiomeric silanes, modified support and its use |
| 07/04/1990 | CN2058992U Fast investigating instrument for microreaction active value |
| 07/04/1990 | CN1043568A High efficient enriching device |
| 07/04/1990 | CN1043567A Rapid measuring method and apparatus for micro anti-active index |
| 07/03/1990 | CA2006880A1 Push column and chromatography method |
| 07/03/1990 | CA1271142A1 Gas chromatographic method for separating hydrogen isotopes |
| 06/28/1990 | WO1990007113A1 Diagnostic assay for breast cancer in human female patients |
| 06/28/1990 | WO1990006796A1 Improvement of chromatographic separator sorbent bed preparation |
| 06/28/1990 | DE3843226A1 Chromatography plates and methods for thin-layer chromatographic separation of enantiomers |
| 06/27/1990 | EP0375611A1 Enantiomeric silanes, modified support and its use |
| 06/27/1990 | EP0375410A2 Improved gas chromatography methods and apparatus |
| 06/27/1990 | EP0374778A2 Method for immobilising a protein in a solid phase, the protein-bearing solid phase and its use |
| 06/27/1990 | EP0282770B1 Optically active (meth)-acrylamides, process for their preparation and their use in the separation of racemates |
| 06/26/1990 | US4937000 Silica-immobilized homo-and copolymers; adsorbents for chroma tographic sedaration |
| 06/20/1990 | EP0373695A1 Monitoring drilling mud |
| 06/20/1990 | EP0373311A2 Device for the enrichment of sample materials for spectroscopic purposes |
| 06/20/1990 | CN2058492U Fixed-point gasifier for raising accuracy of gas phase chromatograph |
| 06/20/1990 | CA2005856A1 Enantiomeric silanes, modified packing material, and use thereof |
| 06/20/1990 | CA2005855A1 Enantiomeric silanes, modified packing material, and use thereof |
| 06/19/1990 | US4935624 Thermal-assisted electrospray interface (TAESI) for LC/MS |
| 06/19/1990 | US4935342 Method of isolating and purifying nucleic acids from biological samples |
| 06/19/1990 | US4935145 Direct quantitative transfer |
| 06/19/1990 | US4935040 Miniature devices useful for gas chromatography |
| 06/19/1990 | CA1270437A1 Chromatographic strip having non-compressed edges |
| 06/16/1990 | CA2002688A1 Interface for coupling liquid chromatography to solid or gas phase detectors |
| 06/15/1990 | CA2005195A1 Monitoring drilling mud |
| 06/14/1990 | WO1990006516A1 Method for determination of glycated proteinaceous species |
| 06/14/1990 | WO1990006507A1 Compact separation system with snap-in columns |
| 06/14/1990 | WO1990006470A1 Micromachined valve with polyimide film diaphragm |
| 06/13/1990 | EP0372581A2 Method of preparing a solid-phase matrix for covalenty binding haptenes |
| 06/13/1990 | DE3939854A1 Small dia. liq. chromatography column with distributor - balancing eluant flow across inlet filter |
| 06/12/1990 | US4933286 Purification of apase-11 and retrieval of the nematode resistance gene |
| 06/12/1990 | US4932272 Liquid sampling valve for gas chromatograph |
| 06/07/1990 | DE3900799A1 Measuring apparatus for determining volatile constituents in a liquid by the headspace method |
| 06/06/1990 | EP0371648A1 A continuous displacement chromatographic method and apparatus |
| 06/06/1990 | EP0371636A2 Improved affinity supports for hemoperfusion |
| 06/06/1990 | EP0371572A2 Sample handling technique |
| 06/06/1990 | EP0371517A1 Electrochemical detection system |
| 06/06/1990 | EP0371258A2 Surface-hydrated porous polyacrylonitrile substrates, such as beads derivatives thereof, process for their preparation, and methods for their use |
| 06/06/1990 | EP0371013A1 Reagent and process for binding polymers to micro-organisms in aqueous solutions. |
| 06/05/1990 | US4931525 Optical active (meth)acrylamides and polymers thereof for racemate resolution |
| 06/05/1990 | US4931498 Immobilized artificial membranes |
| 06/05/1990 | US4931404 Reacting with hyrazine coupled to ion exchange resin, eluting colored product, spectrophotometric analysis of fat catabolism |
| 06/05/1990 | US4931184 Chromatographic separation |
| 06/05/1990 | US4930892 Photodiode array spectrometer |
| 06/05/1990 | CA2004627A1 Chromatographic method for determination of glycated proteinaceous species in blood |
| 06/02/1990 | CA2004410A1 Diagnostic assay for breast cancer in human female patients |
| 05/31/1990 | WO1990005913A1 Method for the chromatographic determination of cations |
| 05/31/1990 | WO1990005747A1 Human neutrophilic granulocyte end-stage maturation factor and its preparation and use |
| 05/31/1990 | WO1990005658A1 Improved integrated three-way and isolation solenoid valve |
| 05/31/1990 | WO1990005572A1 Method of separating a substance from a liquid by means of a particulate material |
| 05/31/1990 | DE3840021A1 Device for the continuous measurement of a gas concentration |
| 05/30/1990 | EP0370401A2 Device for the chromatographic analysis of trace matter in gas |
| 05/30/1990 | EP0370360A2 Apparatus for the intermediate enriching of trace elements from a gas stream in a cold trap |
| 05/30/1990 | CN2057757U N-nitroso chemical compound analysis apparatus |
| 05/29/1990 | CA1269769A1 Modified membrane suppressor and method of use |
| 05/29/1990 | CA1269653A1 Bioactive substance purification process through biospecific adsorption |
| 05/29/1990 | CA1269598A2 Serum pretreatment for tricyclic antidepressant drug assays |
| 05/23/1990 | EP0369769A2 Liquid chromatography using microporous hollow fibers |
| 05/23/1990 | DE3907698C1 Method of analysing a sample |
| 05/23/1990 | CN1008081B Process for preparing spherical sio2 particles |
| 05/22/1990 | US4927879 Method for solid phase membrane mimetics |
| 05/22/1990 | US4927532 Device for the compensation of the baseline drift of a chromatographic separating column |
| 05/22/1990 | US4927531 Axially adjustable-type column device |
| 05/22/1990 | US4926702 Sample presence detector for automatic sample injector |
| 05/21/1990 | CA2003350A1 Human neutrophilic granulocyte end-stage maturation factor and its preparation and use |
| 05/17/1990 | WO1990005018A1 Membrane affinity apparatus and purification methods related thereto |
| 05/16/1990 | EP0368138A1 Adsorbent for chromatography |
| 05/16/1990 | EP0368092A1 Ion exchange and separation method |
| 05/16/1990 | EP0367886A1 Hydrophilic monomers, polymers thereof and their applications |
| 05/16/1990 | EP0367795A1 Affinity separating using immobilized flocculating reagents |
| 05/16/1990 | CA2002835A1 Method of separating a substance from a liquid by means of a particulate material |
| 05/15/1990 | US4925818 Fixing bioactive substance to mineral particulate carrier by connecting silane |
| 05/15/1990 | US4925589 Addition acrylic type polymer |
| 05/15/1990 | US4925567 Baseline stabiilty in gradient ion chromatography by using a nonionic modifier |
| 05/15/1990 | CA2002370A1 Liquid chromatography using microporous hollow fibers |
| 05/15/1990 | CA1269180A1 Discharge ionization mass spectrometer |
| 05/09/1990 | EP0367717A1 Apparatus for carrying out sorption processes |
| 05/09/1990 | EP0367099A2 Liquid piston pump for chromatographic analysis appliances |
| 05/09/1990 | EP0366946A1 Removal of process chemicals from labile biological mixtures by hydrophobic interaction chromatography |
| 05/09/1990 | EP0366854A2 Controlling machine operation with respect to consumable accessory units |
| 05/09/1990 | CN1042008A Method of mineral dressing trace impurity in metal |
| 05/08/1990 | US4924097 Monodisperse aerosol generator for use with infrared spectrometry |
| 05/08/1990 | US4923980 Coupling of reducing sugar to matrix |