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)
01/1988
01/12/1988US4719017 Method of chromatogram analysis and an apparatus therefor
01/12/1988US4719011 High pressure liquid chromatography columns
01/12/1988US4718992 Electrolysis
01/12/1988CA1231293A1 Ceramic articles having a nonporous core and porous outer layer
01/07/1988EP0251306A1 Process and apparatus for the preparation of a controllable and reproduceable temperature gradient, and its use
01/07/1988EP0250666A1 Process for selective dialysis using polymeric affinity adsorbents and size selective membranes
01/05/1988US4717827 Apparatus for on-line spectrophotometric chemical analysis of material in moving process stream
01/05/1988US4717708 Inorganic oxide aerogels and their preparation
12/1987
12/30/1987WO1987007953A2 Chromatographic separation device
12/29/1987US4716219 Adsorbent for protein purification
12/29/1987US4715413 Apparatus for manipulating small volumes of liquid
12/29/1987US4715217 Determining organic compounds using a membrane
12/29/1987US4715216 Process and apparatus for the chromatographic determination of components in specimens
12/29/1987US4715105 Method of preparation of packed fiber glass reaction vessel
12/23/1987EP0250216A2 Method for determination of a " mucoprotein vector " from blood serum
12/23/1987EP0249714A2 Ionization detectors for gas chromatography
12/22/1987US4714555 Agent for separation
12/22/1987US4714554 Cross-axis synchronous flow-through coil planet centrifuge free of rotary seals: apparatus and method for performing countercurrent chromatography
12/22/1987US4714545 Fluid proportioning pump system
12/22/1987US4714526 Supercritical fluid extraction method for multi-component systems
12/22/1987US4714345 Sample arrangement for spectrometry, method for the measurement of luminescence and scattering and application of the sample arrangement
12/22/1987US4713974 Autosampler
12/22/1987US4713963 Method and device for vacuum chromatography
12/17/1987WO1987007719A1 Apparatus for the detection of substances which can be excited for photon emission
12/17/1987WO1987007526A1 Hplc column
12/16/1987EP0249078A2 Optically active adsorbents
12/16/1987CN87104030A Optically active adsorbents
12/15/1987US4713772 Automatic on-line chemistry monitoring system having improved calibration unit
12/15/1987US4713338 Hydrolysis, then condensation of alkoxide of silicon and zirconium
12/15/1987US4713300 Graded refractory cermet article
12/12/1987CN85201771U Automatic chromatograph with microcomputer control and data processing
12/10/1987DE3618605A1 Vorrichtung zur detektion von zur photonenemission anregbaren stoffen Apparatus for detection of the photon emission excitable materials
12/09/1987EP0248379A2 Replenishable low-pressure column for preparative chromatography
12/09/1987CN87102772A Dry matierial for aquated contains dispersed polymeres particle aquogel and its process of preparation and application in biology
12/09/1987CN86103650A Ionization detector with microwave plasma
12/08/1987US4711765 Sorption/desorption gas analysis apparatus
12/08/1987US4711764 High pressure liquid chromatography
12/03/1987WO1987007430A1 Multiple sample radioactivity detector
12/03/1987WO1987007351A1 Micro-valve arrangement
12/03/1987DE3618380A1 Mikroventilanordnung Micro-valve arrangement
12/03/1987DE3617672A1 Reagent and process for binding polymers and microorganisms in aqueous solutions
12/02/1987EP0247929A1 Method and apparatus for chromatographic analysis, in particular of petroleum liquids
12/02/1987EP0247446A2 Nitromodified chromatographic support materials, process for their manufacture and their use
12/01/1987US4710289 Replacable cartridges
12/01/1987EP0138841A4 Transfer of macromolecules from a chromatographic substrate to an immobilizing matrix.
11/1987
11/25/1987EP0246399A2 Method and apparatus for on-line spectrophotometric chemical analysis of material in moving process stream
11/24/1987US4708782 Separating and conditioning for analysis fluid components
11/24/1987US4708013 Liquid water content analyzer
11/24/1987CA1229489A1 Process for separating and purifying metallic elements by displacement chromatography
11/19/1987WO1987006929A1 An optically active reagent and a method for the determination of enantiomeric amine compounds
11/19/1987EP0245940A1 Liquid flow analysis
11/19/1987EP0245936A2 A gas chromatographic method for separating hydrogen isotopes
11/19/1987EP0245642A1 Apparatus for the introduction of samples by thermal desorption
11/17/1987US4706700 Valve arrangement
11/11/1987EP0245222A2 Nitrilophoric Electron-Donor-Acceptor-adsorbents
11/10/1987US4705948 Closed-loop pulsed helium ionization detector
11/10/1987US4705757 Method for fluorometric analysis of catechol amines
11/10/1987US4705725 Substrates with sterically-protected, stable, covalently-bonded organo-silane films
11/05/1987WO1987006589A1 Method for preparing contact-inhibitory factor
11/05/1987WO1987006492A1 Chromatographic apparatus and process
11/03/1987US4704245 Method and apparatus for monitoring break of ion adsorption apparatus
11/03/1987US4704141 Apparatus for automatically transferring small quantities of liquid samples in gas chromatography
11/03/1987CA1228853A1 N-(2-naphthylsulfonyl)-amino acid derivatives, method for preparation thereof and their use for determination of optical purity of optically active compounds
10/1987
10/28/1987EP0243280A1 Method and apparatus for the on-line analysis of a liquid product by liquid chromatography
10/28/1987EP0242544A2 Adsorbent for chromatography, method of producing the same, and column system for chromatography
10/27/1987US4702115 Sample injection timer for chromatographic apparatus
10/27/1987CA1228531A1 Packed column having pressure-absorbing mechanism
10/22/1987DE3712776A1 Automated pipetting device
10/21/1987EP0242302A1 Material for affinity chromatography and its use in the separation and purification of protein antigens from bacteria of the genus Bordetella
10/21/1987EP0242275A1 Dry substance hydratable in an aqueous gel containing particles of dispersed polymers, its preparation process and its biological application
10/21/1987EP0241941A2 Method and apparatus for establishing sorption isotherms
10/21/1987EP0241607A2 Chromatographic method for determining fouling tendency of liquid hydrocarbons
10/20/1987US4701366 Controlled pore size for forming cylindrical posts; vapor deposition, masking, etching or grinding
10/20/1987US4701306 Concentrator for detection of amine vapors
10/20/1987CA1228351A1 Ionically modified cellulose material, its preparation and its use
10/14/1987EP0240658A1 Fluid proportioning pump system
10/14/1987EP0240627A2 A method for determining crude oil fouling by high performance liquid chromatography
10/13/1987US4700059 Chromatographic optical detector with logarithmic calibration circuit
10/13/1987US4699768 Apparatus for exchanging substances between fluids
10/13/1987US4699718 Ion chromatography method and apparatus
10/07/1987EP0240405A1 Method and device for the quantitative analysis of ions by means of chromatography
10/07/1987EP0240013A2 Separation agent for optical isomers, process for preparing it and use thereof
10/07/1987EP0239600A1 Apparatus for, and methods of, operating upon a fluid.
10/06/1987US4698317 Porous cordierite ceramics, a process for producing same and use of the porous cordierite ceramics
10/06/1987US4698071 Continuous absorbtion on powder, desorption by heating; detection of explosives
09/1987
09/30/1987EP0239565A2 Method of separating proteins
09/30/1987EP0239487A2 Refractometric detector for liquid chromatography
09/30/1987EP0239079A2 Insoluble chemical composite material
09/30/1987EP0130574B1 Device for the compensation of the base line drift of a chromatographic column
09/29/1987US4697007 Preparation of microcrystalline triacetylcellulose
09/29/1987US4696980 Sulfone activated thioether adsorbents for the separation of proteins and the like
09/29/1987US4696904 Apparatus and method for the determination of water by liquid chromatography
09/29/1987US4696187 Chromatography method
09/23/1987EP0237817A2 Chromatographic column for immunologic analysis methods
09/22/1987US4695555 Liquid chromatographic detector and method
09/22/1987US4694682 Analysis of organic additives in plating baths using novel chromatographic methods in a mass balance approach
09/16/1987EP0237310A2 Optical detector
09/16/1987EP0237301A2 Sulfonic derivatives of acylated polyethyleneimine bonded phase silica products
09/16/1987EP0236990A2 Gradient system
09/16/1987EP0236982A2 Pump