| 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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| 08/23/1989 | EP0329061A2 A dual beam multichannel spectrophotometer with a unique logarithmic data converter |
| 08/23/1989 | EP0328696A1 Valve unit |
| 08/16/1989 | EP0328256A1 Glass fibers coated with agarose for use as column packing or chromatographic media for bioseparations |
| 08/16/1989 | EP0328146A2 A high pressure column assembly for a liquid chromatograph system |
| 08/16/1989 | EP0327658A1 Sample injector for a liquid chromatograph |
| 08/16/1989 | EP0327609A1 Fluid composition and volumetric delivery control. |
| 08/15/1989 | US4857187 Multistage mixer-settler centrifuge |
| 08/15/1989 | US4856319 Thermally switchable katharometer |
| 08/15/1989 | CA1258385A1 Programmed temperature control of a thermal system |
| 08/10/1989 | WO1989007265A1 Chromatography using electrically conductive polymer stationary phase materials |
| 08/10/1989 | WO1989007246A1 Optical amplifier and method for amplifying optical polarization state change effects |
| 08/10/1989 | WO1989007138A1 Isolation, purification, characterization, cloning and sequencing of n-alpha acetyltransferase |
| 08/09/1989 | EP0327400A2 Chromatographic separations using ion-exchange resins |
| 08/09/1989 | EP0327368A2 Method for determining the compositional distribution of a crystalline copolymer |
| 08/08/1989 | US4855240 Solid phase assay employing capillary flow |
| 08/08/1989 | US4854952 Chromatography apparatus |
| 08/08/1989 | US4854700 Column holder for on-column photometric detection |
| 08/08/1989 | US4854181 Sample injection or extraction head for gaseous or liquid fluids |
| 08/02/1989 | EP0326511A1 Capillary flow cell |
| 08/02/1989 | EP0326421A2 An electroanalytical method |
| 08/02/1989 | EP0326271A1 Carbonaceous adsorbents from pyrolyzed polysulfonated polymers |
| 07/27/1989 | DE3801170A1 Separation materials for thin layer chromatography |
| 07/26/1989 | EP0325032A1 Method for separating nucleic acid |
| 07/25/1989 | US4851700 On-axis electron acceleration electrode for liquid chromatography/mass spectrometry |
| 07/25/1989 | US4851683 Element specific radio frequency discharge helium plasma detector for chromatography |
| 07/25/1989 | US4851528 Anthraquinone derivatives |
| 07/25/1989 | US4851382 An optically active amino acid derivative for resolving racemic mixtures |
| 07/25/1989 | US4851355 Hydrocarbon group-type analyzer system |
| 07/18/1989 | US4849179 Apparatus for taking samples by thermal desorption |
| 07/18/1989 | US4849110 Method and apparatus for liquid chromatography |
| 07/18/1989 | US4848904 Dual beam multichannel spectrophotometer with a unique logarithmic data converter |
| 07/13/1989 | WO1989006359A1 Improved sensor for hand held gas chromatograph |
| 07/13/1989 | DE3833248A1 Vorrichtung zum einbringen eines definierten probenvolumens Apparatus for committing a defined sample volume |
| 07/12/1989 | EP0323693A2 Isomobility focusing in a magnetically stabilized fluidized bed |
| 07/12/1989 | EP0323605A2 Chromatographic binding assay devices and methods |
| 07/11/1989 | US4847159 Substrates coated with organo-silanes that are sterically-protected |
| 07/11/1989 | US4846218 Check valve for liquid chromatography pumps |
| 07/11/1989 | US4845985 Supercritical fluid chromatography |
| 07/05/1989 | EP0323055A2 Composite cromatographic article |
| 07/05/1989 | EP0322708A2 Polymers with amide groups in the side chains |
| 07/05/1989 | EP0322611A2 Apparatus and method for spectrophotometric analysis of a material in a moving process stream |
| 07/05/1989 | CN2040646U Double trench hook type laminating cylinder |
| 07/04/1989 | US4844611 Split stream flow cell |
| 07/04/1989 | US4844119 Integrated three-way and isolation solenoid valve |
| 07/04/1989 | CA1256714A1 On-line coupled liquid and gas chromatography system with an interface capillary tube interposed between a pair of capillary chromatographic columns |
| 07/04/1989 | CA1256704A1 Process for separating uranium isotopes by oxidation- reduction chromatography |
| 06/29/1989 | WO1989005973A1 Sensors for dissolved substances in fluids |
| 06/28/1989 | EP0322340A2 Bi-directional lateral chromatographic test device |
| 06/28/1989 | EP0321745A2 Photoionization detector for gas chromatography |
| 06/27/1989 | US4843243 Method and apparatus for continuous collection of chromatographic effluent |
| 06/27/1989 | US4843016 For nitrogen compounds |
| 06/27/1989 | US4842935 Surface hydrophobic filler with adsorbed lipophilic crown compound |
| 06/27/1989 | US4842825 With fused quartz contact surfaces;pyrolytic analysis |
| 06/27/1989 | US4842730 Liquid chomatograph apparatus |
| 06/27/1989 | US4842689 Method for controlling sulphite pulping and hydrolytic processes by means of rapid furfural analyzer |
| 06/27/1989 | CA1256419A1 Bonded phase of silica and carboalkoxyalkyl silanes for solid phase extraction |
| 06/27/1989 | CA1256418A1 Acylated polyethylenimine bound chromatographic packing |
| 06/27/1989 | CA1256383A1 Chromatographic devices having modified edges |
| 06/21/1989 | EP0321154A2 Automatic preparation apparatus and filter therefor |
| 06/21/1989 | EP0320998A1 Apatite packing for liquid chromatography and process for producing the same |
| 06/21/1989 | EP0320849A1 Apatite packing for liquid chromatography and process for producing the same |
| 06/21/1989 | EP0320530A1 Photodiode array spectrometer |
| 06/20/1989 | US4841145 Apparatus for preparing sample solution for infrared spectrophotometer and method of analyzing sample solution |
| 06/20/1989 | US4840975 Polyamino acids; dissolving, dispersing |
| 06/20/1989 | US4840730 Chromatography system using horizontal flow columns |
| 06/20/1989 | CA1256037A1 Serial flow continuous separation process |
| 06/14/1989 | EP0320472A1 A process for the manufacture of a gel product |
| 06/14/1989 | EP0320023A2 Macroporous polymeric membranes, their preparation and their use for polymer separation |
| 06/14/1989 | CN2039425U Chromatographic preprocessing column |
| 06/14/1989 | CN1033419A Sample injection or extraction head for gaseous or liquid fluids |
| 06/13/1989 | US4839331 Microporous vinyl aromatic polymers |
| 06/13/1989 | US4838688 High sensitivity chromatography detector |
| 06/13/1989 | CA1255827A1 Polysaccharide supports |
| 06/07/1989 | EP0319253A2 Sialic acid glycosides, antigens, immunoadsorbents, and methods for their preparation |
| 06/07/1989 | EP0318705A2 Sample transfer and extraction head for a gas or a liquid |
| 06/07/1989 | EP0318559A1 Analysis of carbohydrates |
| 06/06/1989 | US4837726 Quantitation of chromatographic information |
| 06/06/1989 | US4837441 Ionization detectors for gas chromatography |
| 06/06/1989 | US4837434 Mass spectrometry system and method employing measurement/survey scan strategy |
| 06/06/1989 | US4837161 Method for reagent addition to a flowing liquid carrier stream |
| 06/06/1989 | US4837157 Sample preparation method for liquid chromatography |
| 06/06/1989 | US4836038 Automated sampler-injector apparatus and method for sampling a quantity of sample and testing portions of said quantity |
| 06/06/1989 | CA1255114A1 Instantaneous reading multichannel polychromatic spectrophotometer method and apparatus |
| 06/06/1989 | CA1255057A1 Method of controlling sulphite pulping and hydrolytic processes by means of a rapid furfural analyzer |
| 06/01/1989 | DE3836343A1 Saeulenchromatograph und verfahren zu dessen betrieb Column chromatograph and process for its operation |
| 05/31/1989 | CN1033213A Capillary column switch for multi-dimensional gas chromatography |
| 05/30/1989 | US4835708 Method and apparatus for analysis of chromatograms using cross-correlation and moment analysis |
| 05/30/1989 | US4835707 Automatic analysis method and apparatus for enzyme reaction |
| 05/30/1989 | US4835109 Process and apparatus for chemical analyses by liquid chromatography |
| 05/30/1989 | US4835058 Packing material and process for its production |
| 05/30/1989 | US4834534 Flow cell |
| 05/30/1989 | US4834497 Fiber optic fluid detector |
| 05/24/1989 | EP0317376A1 Preparation of a concentrate of high-purity human factor IX and of other plasma proteins |
| 05/24/1989 | EP0317114A1 Automatic chromatography apparatus |
| 05/24/1989 | EP0317060A2 Electron-emission filament cutoff for GC/MS systems |
| 05/24/1989 | EP0317054A2 Low temperature gas chromatography apparatus and method |
| 05/24/1989 | EP0316985A1 A method of monitoring the drilling operations by analysing the circulating drilling mud |
| 05/24/1989 | EP0316650A2 Process for the separation and purification of hirudin |
| 05/24/1989 | EP0316642A2 Gel-in-matrix containing a fractured hydrogel |
| 05/24/1989 | EP0316551A2 Light transmitting-type liquid detection sensor |