| 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) |
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| 05/08/1990 | US4923616 Method of separating chemical components in simulated moving bed |
| 05/08/1990 | US4923610 Macroporous polymeric membranes for the separation of polymers and a method of their application |
| 05/08/1990 | US4923486 Gas chromatography methods and apparatus |
| 05/03/1990 | WO1990004780A1 Method for determining the concentration of an ionic or ionizable solute by ion-exchange chromatography |
| 05/03/1990 | WO1990004606A1 A process for fractionating polyethylene glycol (peg)-protein adducts and an adduct of peg and granulocyte-macrophage colony stimulating factor |
| 05/03/1990 | WO1990004596A1 Isolation of oligosaccharides |
| 05/02/1990 | EP0366252A1 Porous rigid resins and process of preparation |
| 05/02/1990 | EP0365858A2 Process for reducing the aggregate content of growth hormone-like materials |
| 05/01/1990 | CA1268417A1 Intragonadal regulatory protein |
| 04/25/1990 | EP0365449A1 Immunoadsorbent with weak release rate and process for its production |
| 04/25/1990 | EP0364824A1 Process of removing and concentrating desired ions from solutions thereof |
| 04/25/1990 | EP0364687A2 Sampling device for survey vehicles |
| 04/24/1990 | US4920264 Method for preparing samples for mass analysis by desorption from a frozen solution |
| 04/24/1990 | US4920152 Reversed-phase packing material and method |
| 04/24/1990 | US4919955 Method for packaging perishable products |
| 04/24/1990 | US4919893 Adjusting temperature control; furnace and cooling means |
| 04/24/1990 | US4919595 Fluid delivery system with deficit flow compensation |
| 04/24/1990 | CA1268111A1 Nebulizer particularly adapted for analytical purposes |
| 04/20/1990 | CA2000440A1 Low release rate immunoadsorbent and process for obtaining such immunoadsorbent |
| 04/19/1990 | WO1990004165A1 Differential refractometer |
| 04/17/1990 | US4918585 Maintenance reminder system for a pump |
| 04/17/1990 | US4918020 Colorimetric analysis |
| 04/17/1990 | US4917709 For electroconductive detection in gas chromatography; single component ion exchange column |
| 04/17/1990 | US4917575 Liquid chromatographic pump |
| 04/17/1990 | CA1267877A1 Adsorbents for protein purification |
| 04/17/1990 | CA1267792A1 Fluid sample delivery apparatus |
| 04/11/1990 | EP0363052A1 Process for preparing solid perfluorocarbon polymer supports having attached perfluorocarbon-substituted ligand or binder |
| 04/11/1990 | EP0362813A2 Ion analyzer |
| 04/11/1990 | EP0214237B1 Method and apparatus for analyzing gases dissolved in a liquid sample |
| 04/10/1990 | US4916630 Bed tester for molecular sieve oxygen concentrator |
| 04/10/1990 | US4916313 Method and apparatus for the determination of isotopic composition |
| 04/10/1990 | US4915843 Continuous displacement chromatographic method |
| 04/10/1990 | US4915591 Reciprocating pump and control using outlet valve position sensors |
| 04/10/1990 | US4915356 Fluid valve |
| 04/05/1990 | WO1990003382A1 Support-bound oligonucleotides |
| 04/05/1990 | DE3833300A1 Chromatography column terminating device |
| 04/04/1990 | EP0361234A2 Process and apparatus for preparing samples for ion analysis |
| 04/04/1990 | EP0360901A1 Method and device for the sampling and analysis of hydrocarbons |
| 04/04/1990 | EP0360862A1 Isotope-ratio-monitoring gas chromatography-mass spectrometry apparatus and method |
| 04/03/1990 | US4914159 Immobilized on silica gel; chromatography |
| 04/03/1990 | US4914036 Fast liquid chromatography test for neuroblastin tumors |
| 04/03/1990 | US4913821 Method for the determination of phenols in water |
| 03/28/1990 | EP0360676A1 Method for sequencing of nucleic acids |
| 03/28/1990 | EP0360604A2 Liquid sample movement |
| 03/27/1990 | US4912201 Monoclonal antibodies and antisera to intragonadal regulatory protein |
| 03/27/1990 | US4912051 Preconcentrator; controlling fluid flow |
| 03/27/1990 | US4911903 Spherical SIO2 particles |
| 03/27/1990 | US4911837 Apparatus for reducing tailing in a liquid chromatograph |
| 03/27/1990 | US4911405 Valve unit |
| 03/27/1990 | US4910996 Gas chromatograph modification |
| 03/21/1990 | EP0359322A2 Liquid chromatography |
| 03/21/1990 | EP0359320A2 Chromatography apparatus |
| 03/21/1990 | EP0359319A2 Chromatography |
| 03/21/1990 | EP0359249A2 Microfiltration apparatus & method of using the same |
| 03/21/1990 | EP0358693A1 Sintered pellet with biochemically active layer |
| 03/20/1990 | US4909941 High performance liquid chromatography mobile phase |
| 03/20/1990 | US4909317 Condenser, hermetic sealing, high and low temperature resistant |
| 03/20/1990 | US4909078 Fluid flow detector |
| 03/15/1990 | DE3930654A1 Multidimensionale chromatographische anordnung Multidimensional chromatographic arrangement |
| 03/14/1990 | EP0358208A2 Liquid crystal polyorganosiloxanes containing (meth)acryloxy groups |
| 03/14/1990 | EP0357869A1 Affinity substance assay with HPLC step |
| 03/13/1990 | US4908676 Sensors for dissolved substances in fluids |
| 03/13/1990 | US4908405 Graft copolymers of crosslinked polymers and polyoxyethylene, processes for their production, and their usage |
| 03/13/1990 | US4908112 Capillary sized, closed conduit to be filled with material for electrophoretic or chromatographic separation, the device comprising a semiconductor slab with channel and cover plate |
| 03/13/1990 | US4907884 Sample cell monitoring system |
| 03/08/1990 | WO1990002141A1 Compositions and methods for drug delivery and chromatography |
| 03/08/1990 | WO1990002140A1 Method for purifying teneicine |
| 03/07/1990 | EP0357479A1 Material, capable of fixing biological substances and its use especially as support for affinity chromatography |
| 03/07/1990 | EP0357137A2 New silylating agent for the preparation of chromatographic supports |
| 03/07/1990 | EP0356838A2 Chromatographic stationary supports |
| 03/06/1990 | US4906715 N,N'-divinylalkylurea crosslinked polymers, a process for their preparation, and their use |
| 03/06/1990 | US4905498 Gaseous detection system |
| 03/01/1990 | DE3829006A1 Metering device for gas chromatography |
| 02/28/1990 | EP0356160A2 Capillary device |
| 02/28/1990 | EP0356008A2 High temperature flame jet for gas chromatography |
| 02/28/1990 | EP0355681A1 Damping device for pulsating delivering pumps |
| 02/28/1990 | EP0355680A1 Damping device for pulsating delivering pumps |
| 02/28/1990 | EP0355546A2 A method and device for the control of gaschromatographic functions |
| 02/28/1990 | EP0355376A2 Sulfur-containing hydrocarbon compounds and process of using same in recovering and concentrating desired ions from solutions thereof |
| 02/28/1990 | EP0355242A1 Method for making mineral filtration beads to be used in gel adsorption and permeation chromatography |
| 02/28/1990 | CN2053755U Sample-feeding/integration remote controller for chromatograph |
| 02/28/1990 | CN1040097A Device for continuously detecting hydrogen component, applying differencial reduction method to industrial hydrogen chromatograph |
| 02/27/1990 | US4905161 Flow stability reporting system for a liquid chromatography system |
| 02/27/1990 | US4904603 Monitoring drilling mud |
| 02/20/1990 | US4902891 Thermospray methods and apparatus for interfacing chromatography and mass spectrometry |
| 02/20/1990 | US4902414 Liquid chromatograph apparatus |
| 02/20/1990 | US4902413 Organic-based porous microspheres for HPLC |
| 02/20/1990 | US4902134 Optical amplifier and method for amplifying optical polarization state change effects |
| 02/15/1990 | DE3827449A1 Method for the analytical determination of acetylcyanamide |
| 02/14/1990 | EP0354861A1 Apparatus, use and process for producing a regulator of a very low gas flow with a sonic flow velocity for measuring gas adsorption and desorption |
| 02/14/1990 | EP0354618A2 Apparatus for chemical analysis |
| 02/13/1990 | US4900936 Dosimeter construction |
| 02/13/1990 | US4900680 Method and apparatus for measuring lipid peroxide |
| 02/13/1990 | US4900537 Control of form of crystal precipitation of aluminum hydroxide using cosolvents and varying caustic concentration |
| 02/13/1990 | US4900447 Method for determination of mucoprotein vector |
| 02/13/1990 | US4900446 Centrifugal fast chromatograph |
| 02/13/1990 | US4900435 Centrifugal fast chromatograph |
| 02/08/1990 | WO1990001165A1 Syringe type column for chromatography |
| 02/08/1990 | WO1990001164A1 Dual-column, dual-detector gas detector and analyzer |
| 02/08/1990 | DE3925460A1 Liq. chromatograph to take samples - having sepg. and protection column, pumps, valves isolation valves and detector |